note's from: Circuit's for Electronic's Engineer's, Electronic's Book Serie's./
Created | Updated Oct 15, 2012
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Circuit's for Electronic's Engineer's
Electronic's Book Serie's
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McGraw-Hill
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Electronic's Book Serie's
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Also published by Electronic's
-Microprocessor's
-Large scale integration
-Data communication's
-Applying microprocessor's
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Library of Congress Catalog Card No. 76-57777
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Copyright 1977 by McGraw-Hill, Inc. All right's reserved. Printed in the United States of America. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any mean's, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher.
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McGraw-Hill Publication's Co.
1221 Avenue of the America's
New York, New York 10020
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Mc-Graw-Hill
Edited by Samuel Weber
Executive Editor,
Electronic's
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Electronic's Magazine Book Serie's
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Circuit's for Electronic's Engineer's
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Edited by Samuel Weber
Excutive Editor,
Electronic's
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Interested in clever, money-saving, rock-solid electronic's design? Here's a veritable gold mine of idea's from some of the top engineer's in the world. Once this volume is on your desk, you can consult it for instant help and inspiration on any problem that come's along. It may not necessarily give you a direct solution, although it contain's hundred's of good one's. It will give you, though, engineering know-how and cost-cutting and efficiency-boosting idea's that will stimulate your creativity and inspire you to come up with your own tailor-made solution's to the many problem's you encounter.
The book is a time-saving, convenient reference. It feature's 364 practical circuit's that have appeared in the Designer's Casebook section of Electronic's magazine in the past four year's. Because of the overwhelming popular response to the Casebook, the editor has selected the best and most useful design solution's-and presented them in book form for your convenience.
For easy reference, the ciruit's are arranged in 51 categories in alphabetical order. In a few second's you can pinpoint the material you seek. Compare this with the drudgery of looking through the content's page's of back issue's of the magazine.
Tested and proved in action, the circuit's in this volume have been designed by engineer's to solve actual problem's. They are presented here for your use in keeping with the principle that has made Designer's Casebook so popular for many year's. Namely, that there is no point in solving a problem on your own when it may already have been solved by someone else.
Published Casebook idea's are selected for innovation, usefulness, and accuracy. And what you get in this volume is a topnotch selection. For example, it show's you...
-How to construct a video distribution amplifier with all the feature's of $300 commercial model's-for less than $25 in part's.
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-How to use a low-power-drain, high-gain monolithic audio amplifier intended for hearing aid's for a variety of other application's, like tape-recoder preamplifier's and wireless microphone's.
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-An easy way to build a low-power supply in which ripple voltage can be brought virtually to zero.
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-How as many as eight momentary switches can be interlocked electrically even when they are physically separated from one another.
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-A sophisticated intruder alarm circuit that use's the horn of a car and incorporates time delay's-based on two CMOS package's.
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-A novel way of building a dual-voltage regulator for powering op amp's that offer good tracking as well as low ripple.
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Clearly, this volume offer's you much useful help in doing your best with special problem's-and run-of-the-mill work. It give's you a chance to save time and effort by incorporating or adapting idea's from other's who ere faced with similar problem's. After all, innovative engineering has alway's been based on experience and here you get the benefit of the experience of hundred's of your fellow engineer's. The book is permanetly useful as a store-house of design solution's to problem's that you may encounter in the future:
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-How to include an oscillator in the design of a digital clock to keep it going during an interruption of the ac power.
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-How a permanent-magnet dc motor can serve as it's own tachometer for speed control, allowing considerable cost saving's over an expensive motor-tachometer unit.
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-How the design of a weighted-resistor digital-to-analog converter can be simplified by using the gate that supplie's the digital input data as a switch.
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-How an ordinary bipolar transistor can be made to function as a command inverter.
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-How an inexpensive circuit can replace a lengthy software routine at interface between a teletype-writer and almost any microprocessor.
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-How a complementary-transistor out-put stage turn's the 709-type op amp into a far better performer than it is by itself.
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-How the ringing signal on a telephone line can be made to operate a remote ringer without overloading telephone company line's, without interering with company service, and without degrading operation of the line receiving the signal.
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-How a CMOS voltage monitor protect's nickel-cadmium batterie's from discharging completely and suffering permanent damage.
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$19.50
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Preface:
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Since 1964, the Designer's Casebook section of ELECTRONIC'S magazine has been consistently one of the best read section's of the magazine. The reason's for this are not hard to find. first, engineer's are alway's looking for way's to relieve the drudgery that is part of design. If they can save time and effort by incorporating or adapting idea's from other's, they will do so with alacrity. Second, the standard's of ELECTRONICS have alway's been high. Published Casebook idea's are selected for innovation, usefulness, and accuracy.
This volume is a compilation of 364 useful circuit's that have appeared in Desgner's Casebook over the last four year's. They were designed by engineering reader's of ELECTRONIC'S from all over the world and represent approaches to achieving oft-required electronic function's in a variety of way's. There are 51 such function's arranged alphabetically, and the circuit's have been conveniently grouped within them for fast access.
This is not intended as a hobbyist book. While some are relatively simple, most of the circuit's in this volume have been designed by engineer's for the achievement of engineering objective's. They are presented on the same principle that has made Designer's Casebook so popular for so many year's: namely, that re-inventing the wheel is wasteful of engineering time.
To the hundred's of inventive engineer's who have contributed their innovative idea's to Designer's Casebook, and to the thousand's of loyal Electronic's reader's who have responded enthusiatically to them, this book is gratefully dedicated.
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Table of Content's
1. Amplifier's
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1. Single preamplifier/isolator drives if and vlf receiver's.
2. Unity-gain stage is 50-ohm driver.
3. Eliminating offset error in sense amplifier's.
4. Dc restorer for video use offer's ultra-stability.
5. CATV transistor's function as low-distortion vhf preamplifier.
6. High-speed voltage-follower has only 1-nanosecond delay.
7. Getting power and gain out of the 741-type op amp.
8. High-gain triple Darlington has low saturation voltage.
9. Transducer preamplifier conserves quiescent power.
10. Two IC's make low-cost video-distribution amp.
11. No eleven, (11)
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2. Analog-Digital Converter's
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12. Adding automatic zeroing to analog-to-digital converter.
13. Logic system check's out analog-to-digital converter.
14. Height-to-width converter digitized analog sample's.
15. Current source and 555 timer make linear v-to-f converter.
16. Analog-to-digital converter produce's logarithmic output.
17. Comparator's and resistor's form clockless a-d converter.
18. Comparator IC form's 10-bit a-d converter.
19. Coding a-d converter's for sign and magnitude.
20. No twenty, (20).
21. Four-bit a-d converter need's no clock.
22. No twenty-two, (22)
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3. Analog Signal Processing
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23. Two instrument IC's sum six input's.
24. Analog square-root circuit handle's wide input range.
25. No twenty-five, (5).
26. Quasi-matched MOSFET's form filterless squaring circuit.
27. Timer IC pace's analog divider.
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4. Audio Circuit's
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28. Shift register with feedback generate's white noise.
29. No twenty-nine, (29).
30. One-transistor regulator minimize's amplifier distortion.
31. C-MOS sum's up tone's for electronic organ.
32. Handy audio amplifier minimizes power drain.
33. No thirty-three, (33).
34. Audio amplitude leveler minimize's signal distortion.
35. Synchronous noise blanker clean's up audio signal's.
36. Microphone preamp get's power through signal cable.
37. FET's remove transient's from audio squelch circuit.
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5. Automatic Gain Control
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38. Agc threhold detector prodive's fast slewing.
39. Touch tone receiver front end provide's agc and filtering.
40. No Fourty, (40).
41. Varistor voltage divider improve's receiver agc.
42. Photocoupler provide's agc for audio communication's.
43. Broadband p-i-n attenuator has wide input dynamic range.
44. Automatic gain control operate's over two decade's.
45. Automatic gain control quell's amplifier thump.
46. No fourty-six, (46)
47. No fourty-seven, (47)
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6. Automotive circuit's
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48. Precision auto tachometer squelche's point bounce.
49. Sure-fire ignition system safely limit's engine rpm.
50. Ice warning indicator monitor's road condition's.
51. Ic boost's starting energy for solid-state ignition.
52. Electronic switch control's automoblie air conditioner.
53. Tail-biting one-shot keep's car-door light on.
54. IC timer make's economical automoblie voltage regulator.
55. Automobile ignition system is rugged and reliable.
56. Tri-level indicator monitor's automobile's electrical system.
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7. Bridge circuit's
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57. No fifty-seven, (57).
58. Feedback linearized resistance bridge.
59. Winking LED note's null for IC-timer resistance bridge.
60. Circular voltage divider need's fewer resistor's.
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8. Clock circuit's
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61. Micropower comparator's generate 2-phase clock.
62. Multiphase clock produce's nonoverlapping pulse's.
63. Oscillator drive's digital clock when as power fail's.
64. TTL interface circuit synchronize's computer clock.
65. No Sixty-five, (65)
66. Quad NAND gate package yield's two-frequency clock.
67. Generating overlapped clock phases for CCD array.
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9. Comparator's
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68. Phase comparator for servo loop's.
69. TTL gate's speed up pulse-height analysis.
70. One-shot/flip-flop pair's detect frequency band's.
71. Simple logic circuit's compare binary number's.
72. Varying comparator hysteresis without shifting initial trip point.
73. Window comparator need's only one op amp.
74. Single op amp compare's bipolar voltage magnitude's.
75. Logic circuit select's most intense signal.
76. Modified window comparator compensate's for temperature.
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10. Control circuit's
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78. Complementary lighting control use's few part's.
79. Precision triac trigger has wide dynamic range.
80. Sampling regulator control's motor speed.
81. Dc motor control circuit cancel's armature resistance.
82. Stepper drive circuit boost's motor torque.
83. Logic circuit convert's synchronous motor to stepper.
84. Controlling ac load's with C-MOS bilateral switches.
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11. Counter's
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85. Counter invert's period to measure low frequency.
86. No eighty-six, (86).
87. Up/down synchronous counter take's just four MSI package's.
88. C-MOS counting circuit accumlate's 2~`70 pulse's.
89. High-power counter drive's 20-watt load's.
90. Transistor array convert's to fast-switching thyristors.
91. Potentiometer and timer control up/down counter.
92. External gate double's counter speed.
93. Ring counter eliminate's false gating signal's.
94. Low-speed counter use's low-priced calculator chip.
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12. Current source's
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95. No ninty-five, (95).
96. Controlled current source is versatile and precise.
97. Bilateral current source is digitally programable.
98. Controllable current source eliminate's matched resistor's.
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13. Detector's
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99. Simple gating circuit mark's both pulse edge's.
100. Differentiate and count to find frequency error.
101. Frequency discriminator use's one-shot and flip-flop.
102. Schottky diode pair make's an rf detctor stable.
103. Temperature-stable decoder for modulated pulse width's.
104. Video detector store's peak frequency.
105. LED display show's beat frequency.
106. Radiation monitor has linear output.
107. Overrange indicator can enhance frequency meter.
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14. Digital-analog converter's
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108. Logic driving gate's double as d-a converter switches.
109. No-ladder d-a converter work's from one 5-V supply.
110. Digital-to-analog converter is built from low-cost part's.
111. Amplifier add's sign bit to a-d converter output.
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15. Discriminator's
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112. Adjustable discriminator clean's up signal noise.
113. Two-IC pulse discriminator handle's wide range of input's.
114. Voltage discriminator has 0.1-mV resolution.
115. Buffer keep's noise triggering thyristor.
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16. Display circuit's
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116. Scope display of eight signal's help's debug sequential logic.
117. Chopping mode improve's multiple-trace display.
118. Graduated-scale generator calibrate's data display.
119. PROM provide's linear or logarithmic display.
120. Converter for oscilloscope provides four-channel display's.
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17. Encoder's and decoder's
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121. PROM convert's binary code to drive 1 1/2-digit display.
122. Converter changes 7-segment output to decimal or BCD.
123. Hexadecimal encoder debounce's keyboard.
124. Providing a decimal output for a calcuator chip.
125. Gray-code generator avoid's output glitche's.
126. IC trio convert's 7-segment code to decimal.
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18. Filter's
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127. Digital-to-analog converter control's active filter.
128. Active filter has separate band and frequency control's.
129. Wien bridge in notch filter give's 50 db rejection.
130. Voltage-tuned filter varies center frequency linearly.
131. Tunable active filter has switchable response.
132. Two-IC digital filter varies passband easily.
133. Analog filter can be programed digitally.
134. Narrowband digital filter achieve's high Q's.
135. Tunable notch filter suppresses hum.
136. Nonlinear low-pass filter reject's impulse signal's.
137. State-variable filter use's only two op amp's.
138. Three-mode network network is filter or oscillator.
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19. Frequency divider's
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139. TTL decade counter divide's pulse train by any integer.
140. Control one-shot divide's frequency by up to 30.
141. Binary division produce's harmonic frequencie's.
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20. Frequency doubler's.
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142. Frequency doubler's accept's any waveshape.
143. Pulse-frequency doubler require's no adjustment.
144. Switched frequency doubler provide's multiple output's.
145. Frequency-doubler produce's square-wave output.
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21. Frequency synthesizer's
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146. Long/short-period pulse's speed synthesizer setting.
147. Thumbwheel switche's set synthesizer output frequency.
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22. Function generator's
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148. Norton quad amplifier can be low-cost function generator.
149. Counter and decoder/driver produce's staircase voltage.
150. Synchronous ramp generator maintain's output linearity.
151. Triangular-wave generator span's eight decade's.
152. Staircase generator resist's output drift.
153. Generating tone burst's with only two IC timer's.
154. Waveform is synthesized from linear segment's.
155. Link-coupled tank circuit step's up C-MOS drive voltage.
156. Square-wave generator stresse's frequency stability.
157. Digital pulse's synthesize audio sine wave's.
158. Timer IC stabilizes sawtooth generator.
159. Triangular wave's from 555 have adjustable symmetry.
160. Frequency divider plus op amp approximate's sine wave.
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23. Instrument circuit's
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161. Voltage-to-current converter for process-control system's.
162. Data averager for panel meter operate's from meter's clock.
163. Capacitor correct's drift for analog data amplifier.
164. Low-drift IC's form instrument amplifier.
165. Integrated multiplier simplifies wattmeter design.
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24. Integrator's
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166. Two-amplifier integrator extends timing performance.
167. Inverting transistor boost's integrator's time constant.
168. Miller-effect integrator's act as signal sample's.
169. Precision integrator reset's as it sample's.
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25. Invert's
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170. Single bipolar transistor invert's pulse's on command.
171. Digital command invert's signal.
172. Transistor array cut's cost of algebraic inversion.
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26. Limiter's
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173. Broadband cutoff limiter is phase-transparent.
174. Linear signal limiting with feedback multiplier.
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27. Logic circuit's
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175. Unclocked logic element's make's quick decision's.
176. Simplifying sum-correction logic for adding two BCD number's.
177. Circuit add's BCD number's faster with less hardware.
178. Common-gate, common-base circuit's shift voltage level's.
179. IC logic unit's simplifiy binary number conversion.
180. Serial digital multiplier handle's two five-bit number's.
181. Gate threshold difference produce's initializing pulse.
182. Logic probe with LED display check's ECL circuit's.
183. Simple gating circuit monitor's real-time input's.
184. NAND gate's and inverter synchronize control signal.
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28. Memory circuit's
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185. Memory, peripheral's share microprocessor address range.
186. Feedback latch reduce's memory recovery time.
187. Register-addressing system accesse's within nanosecond's.
188. Buffer speed's response time of first-in, first-out memory.
189. Storing computer data with a cassette recorder.
190. One NOR start's shift-register loop.
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29. Microprocessor's
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191. Hardware help's in tracing microprocessor program.
192. Converter let's processor drive teletypewriter.
193. Dual-555-timer circuit restart's microprocessor.
194. Interfacing a teletypwriter with an IC microprocessor.
195. IC's interface keyboard to microprocessor.
196. PROM decoder replace's chip-enabling logic.
197. Circuit step's program for 8080 debugging.
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30. Modulator's and demodulator's
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198. Digital demodulator for phase-shift-keyed data
199. Amplitude modulator is highly linear.
200. Mark/space modulator drive's acoustic coupler.
201. Low-distortion modulator test's hi-fi a-m tuner's.
202. Coherent phase modulation attain's data rate's of 100 MHz.
203. FSK modem interface's cassette and computer.
204. Binary rf phase modulator switch's in 3 nanosecond's.
205. Mark/space demodulator employ's active filter's.
206. Fast-switching modulator reverse's uhf signal phase.
207. Variable-gain amplifier yield's linear rf modulator.
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31. Multiplexer's
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208. Gated MOSFET act's as multiplexing switch.
209. Wired-OR DT.L gate's increased multiplexer input capacity.
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32. Multivibrator's
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210. Output comparator enhance's versatility of one-shot.
211. Multivibrator clock obey's digital command's.
212. Exclusive-OR gate make's bidirectional one-shot.
213. Double-duty multivibrator give's complementary output's.
214. Programable monostable is immune to supply drift.
215. Astable multivibrator need's only one capacitor.
216. IC timer circuit yield's 50% duty cycle.
217. Programable mutivibrator is four-in-one circuit.
218. Monostable's pulse width is programable.
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33. Operational amplifier's
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219. Helping a 709-type op amp to outperform itself.
220. Complementary output stage improve's op-amp response.
221. Controlling op amp gain with one potentiometer.
222. FET-controlled op amp permit's wide dynamic range.
223. Serie's-connected op amp's null offset voltage.
224. Continuing biasing improve's clamping amplifier.
225. More application's for the 741-type op amp.
226. Combined op amp's improve over-all amplifier response.
227. Op amp's multiply RC time constant's.
228. Fet program's op amp for invertible gain.
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34. Optoelectronic circuit's
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229. Negative feedback keep's LED intensity constant.
230. Analog voltage senor control's LED threshold.
231. Matched optical coupler's stabilized isolation circuit.
232. Optocoupler convert's as tone to digital logic level's.
233. Optically coupled ringer doesn't load phone line.
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35. Oscillator's
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234. One-op-amp oscillator keep's sine-wave amplitude constant.
235. Low-distortion oscillator use's state-variable filter.
236. Complementary JFETS form bimode oscillator.
237. Modified function generator yield's linear VCO.
238. ECL tuned oscillator's are voltage-stable.
239. Antilog function generator keep's VCO output linear.
240. Common silicon diodes stabilize oscillator.
241. Stable crystal oscillator work's over wide supply range.
242. Negative-resistance generator has controllable response.
243. ECL gates stretch oscillator range.
244. C-MOS minimize's the size of crstal oscillator's.
245. ECL IC oscillate's from 10 to 50 MHz.
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36. Phase-lock circuit's
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246. Feedback in phase-locked loop linearize's phase demodulator.
247. Phase-locked loop include's lock indicator.
248. Circumventing BCD addition in digital phase-locked loop's.
249.Phased-locked loop adjust's to varying signal condition's.
250. Logic gate's LED indicate's phase lock.
251. Analog multiplier/divider simplifies frequency locking.
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37. Phase Shifter's
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252. Output's of op-amp network's have fixed phase difference.
253. All-digital phase shifter handle's 5-to-1 bandwidth.
254. Frequency doubler and flip-flop make adjustable phase shifter.
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38. Potentiometer Circuit's
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255. Linear pot and op amp provide tapered audio volume control.
256. Serie's resistance improve's potentiometer linearity.
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39. Power supplie's
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257. Voltage doubler's power microprocessor PROMs.
258. Inverting dc-to-dc converter's require no inductor's.
259. IC timer's control dc-dc converter's.
260. Compact dc-dc converter yield's "~+15 V from +5V.
261. Power-supply add-on yield's variable-ratio output.
262. Regualted power supply is adjustable from 0 to 38V.
263. Gate bias circuit for n-MOS run's from 5-V TTL supply.
264. Filament transformer output drop's cost of 400-Hz supply.
265. IC timer and voltage doubler form a dc-dc converter.
266. SCR zero-cross trigger limit's maximum laod power.
267. Handy supply provide's fixed and variable output's.
268. Eliminating current spiking from dc-to-dc converter's.
269. SCR crowbar circuit fire's quickly and surely.
270. C-MOS voltage monitor protect's Ni-Cd batterie's.
271. Inexpensive power supply produce's zero-ripple output.
272. Timer circuit generate's precision power-on reset.
273. Crowbar protection circuit sense's load voltage directly.
274. Pulsed standby battery save's MOS memory data.
275. One lamp can monitor battery voltage.
276. 2.4V battery backup protect's microprocessor memory.
277. Four-ampere power supply cost's just $13 to build.
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40. Programable gain control's
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278. Digital word set's gain of amplifier.
279. D-a converter form's programable gain control.
280. Combination logic cut's part's in digitally controlled amplifier.
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41. Protection circuit's
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281. Phase-sequence detector trip's circuit breaker.
282. Current and power limiter protect's switching transistor.
283. Diodes switch high power to protect sonar receiver.
284. Sensing resistor limit's power-supply current.
285. Two diodes protect logic-level translator.
286. Digital transient suppressor eliminate's logic error's.
287. Voltage regulator protect's pull-up transistor's.
288. Power-failure detector is good for short lapse's.
289. How to prevent spurious tripping of protection circuit's.
290. C-MOS reset circuit ignore's brif outage's.
291. Overvoltage indicator can be added to C-MOS IC tester.
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42. Pulse generator's
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292. Nanosecond-pulse genertor is powered by two D cell's.
293. Generating pulse's with C-MOS flip-flop's.
294. Preset generator produce's desired number of pulse's.
295. Controlling duty cycle and rep rate independently.
296. Pulse generator accuracy is immune to aging.
297. Generator's duty cycle stay's constant under load.
298. Generator independently varies pulse rate and width.
299. Generating nanosecord pulse's with TTL monostables.
300. Single switch regulate's number of pulses.
301. Binary input determine's pulse-generator frequency.
302. Pulse generator produce's programable burst.
303. Bootstrap circuit generates high-voltage pulse train.
304. Delay line in shift register speed's m-sequence generation.
305. One-shot with feedback loop maintain's constant duty cycle.
306. Adjustable pulse generator feature's rate alarm.
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43. Rectifier's
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307. Rectifying wide-range signal's with pecision, variable gain.
308. Comparator and D-MOS switch rectify small signal's linearly.
309. Full-wave rectifier need's only three matched resistor's.
310. Op amp with feedback make's full-wave rectifier.
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44. Security circuit's
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311. Latch circuit's interlock remote switche's electrically.
312.Auto intrusion alarm use's C-MOS circuit's.
313. Twin oscillator's form intruder detector.
314. Electronic combination lock offer's double protection.
315. Digital combination lock is virtually crakproof.
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45. Sensor's
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316. Capactive transducer sense's tension in muscle fiber's.
317. Photodector sense's motion in noisy surrounding's.
318. Two-component light sensor has high voltage output.
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46. Switching circuit's
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319. Doubling breakdown voltage with cascoded transistor's.
320. Solid-state dpdt switch provide's current reversal.
321. Attenuating transient's in analog FET switche's.
322. Transistor gating circuit cut's signal delay to 100 ps.
323. Op amp cancel's video switching transient's.
324. Analog gate and zender diode give 70-dB isolation at 80 MHz.
325. C-MOS touch-switch array control's analog signal's.
326. Switching large ac load's with logic-level signal's.
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47. Temperature control's
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327. Diode plus low-cost op amp make's accurate thermostat.
328. Soldering iron convert's to constant-temperature probe.
329. Using transistor array's for temperature's compensation.
330. Diode pair sense's differential temperature.
331. Direct-reading coverter yield's temperature.
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48. Timing circuit's
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332. Silent timer warn's of tape run-out.
333. Compensating the 555 timer for capacitance variation's.
334. Discriminator display's first of four response's.
335. Simple logic arrangement identifie's first event.
336. Making music with IC timer's.
337. Extending time delay with an emitter-follower.
338. Getting extra control over output period's of IC timer.
339. Digital clock/calender offer's dual-mode display.
340. Timer pulse width's range from second's to hour's.
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49. Trigger's
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341. Schmitt trigger prevent's clock train overlap.
342. Integrated timer operate's as variable Schmitt trigger.
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50. Voltage reference's
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343. Stable voltage reference use's single power supply.
344. Single-supply reference source use's self-regulated zender.
345. Variable voltage source has independently adjustable TC.
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51. Voltage regulator's
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346. Extra resistor help's regulator share load with transistor.
347. 555 as switching regulator supplie's negative voltage.
348. Regulator for standby supply handle's large load current's.
349. Temperature limiting boost's regulator output current.
350. Boosting IC regulator current with almost no power loss.
351. Adding foldback resistor provide's overload saftely.
352. Current-sharing design boost's regulator output.
353. Economical serie's regulator supplie's up to 10 ampere's.
354. Switching regulator produce's constant-current output.
355. Regulating supply voltage all the way down to zero.
356. Regulator for op amp's practically power's itself.
357. Regulating voltage with just one quad IC and one supply.
358. Regulating high voltage with low-voltage transistor's.
359. Regulating high voltage's with low-voltage zener's.
<eureka>
1. Amplifier's
<eureka>
Single preamplifier/isolator drive's If amd vlf receiver's
by R.W. Burhan's
Ohio University, Athens, Ohio
<eureka>
Unity-gain stage is 50-ohm driver
by William A. Palm
Control Data Corp., Minneapolis, Minn.
<eureka>
Eliminating offset error in sense amplifier's
by Dan Chin
Cambridge Memories, Newton, Mass.
<eureka>
Dc restorer for video use offer's ultra-stability
by Roland J. Turner
AEL Communication's Corp., Lansdale, Pa.
<eureka>
CATV transistor's function as low-distortion vhf preamplifier's
by Paolo Antoniazzi
Societ'a Generale Semiconduttori, Milan, Italy
<eureka>
High-speed voltage-follower has only 1-nanosecond delay
by O.A. Horna
COMSAT Laboratorie's, Clacksburg, Md.
<eureka>
Getting power and gain out of the 741-type op amp
by Pedro P. Garza, Jr.
General Electric Co., Apollo and Ground System's, Houston, Texas
<eureka>
High-gain triple Darlington has low saturation voltage
by Eric Burwen
G&S System's Inc., Burlington, Mass.
<eureka>
Transducer preamplifier conserve's quiescent power
by Robert F. Down's
Ocean & Atomospheric Science Inc., Santa Ana, Calif.
<eureka>
Two IC's make low-cost video-distribution amp
by M. J. Salvati
Sony Corp. of America, Long Island City, N.Y.
<eureka>
2. Analog-digital convert's
<eureka>
Adding automatic zeroing to analog-to-digital converter
by Tom Birchell
Advanced Electronic Control's, Fremont, Calif.
<eureka>
Logic system check's out analog-to-digital converter
by Charles J. Huber
Westinghouse Electric Corp., System's Development Div., Baltimore, Md.
<eureka>
Height-to-width converter digitize's analog sample's
by Roland J. Turner
RCA Corp., Missle and Surface Radar division, Moorestown, N.J.
<eureka>
Current source and 555 timer make linear v-to-f converter
by Andrew McClellan
Case Western Reserve University, Cleaveland, Ohio
<eureka>
Analog-to-digital converter produce's logarithmic output
by Ronald Ferrie
Communication's & Control's Co., Pittsburgh, Pa.
<eureka>
Comparator's and resistor's form clockless a-d converter
by Adrian H. Kitai
Hamilton, Ont., Canada
<eureka>
Comparator IC form's 10-bit a-d converter
by James M. Williams
Massachusetts Institute of Technology, Cambridge, Mass.
<eureka>
Coding a-d convert's for sign and magnitude
by William D. Miller
Hybrid System's Corp., Burlington, Mass.
<eureka>
Four-bit a-d converter need's no clock
by Craig J. Hartley
Baylor College of Medicine, Houston, Texas
<eureka>
3. Analog signal processing
<eureka>
Two instrument IC's sum six input's
by A. Paul Brokaw
Analog Device's Semiconductor, Wilmington, Mass.
<eureka>
Analog square-root circuit handle's wide input range
by W. V. Dromgoole
Christchurch, New Zealand
<eureka>
Quasi-matched MOSFET's form filterless squaring circuit
by W. V. Subbarao
North Dakota State University, Fargo, N.D.
<eureka>
Timer IC pace's analog divider
by Kamil Kraus
Plzen, Czechoslovakia
<eureka>
4. Audio circuit's
<eureka>
Shift register with feedback generate's white noise
by Marc Damashek
Clarke School for the deaf, Northampton, Mass.
<eureka>
One-transistor regulator minimize's amplifier distortion
by Dale Hileman
Sphygmetric's, Inc., Woodland Hills, Calif.
<eureka>
C-MOS sum's up tone's for electronic organ
by Robert Woody
Hercules Inc., Radford, Va.
<eureka>
Handy audio amplifier minimize's power drain
by Fred Riffle
Raytheon Semiconductor Div., Mountain View, Calif.
<eureka>
Audio amplitude leveler minimize's signal distortion.
by Edward E. Pearson
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Synchronous noise blanker clean's up audio signal's
by M. J. Salvati
Sony Corp. of America, Long Island City, N.Y.
<eureka>
Microphone preamp get's power through signal cable
by Don Jones
Harris Semiconductor, Melbourne, Fla.
<eureka>
FET's remove transient's from audio squelch circuit
by Glen Coers
Texas Instrument's Component's Group, Dallas, Texas
<eureka>
5. Automatic gain control
<eureka>
Agc rf threshold detector provide's fast slewing
by Roland J. Turner
American Electronic's Communication's Corp., Lansdale, Pa.
<eureka>
Touch Tone receiver front end provide's agc and filtering
by Jack D. Dennon
Computerphone System, Renton, Wash.
<eureka>
Varistor voltage divider improve's receiver agc
by M. J. Salvati
Sony Corp. of America, Long Island City, N.Y.
<eureka>
Photocoupler provide's agc for audio communication's
by Richard K. Dickey
California Polytechnic State University, San Luis Obispo, Calif.
<eureka>
Broadband p-i-n attenuator has wide input dynamic range
by Roland J. Turner
American Electronic Lab's, Colmar, Pa.
<eureka>
Automatic gain control operate's over two decade's
by Carl Marco
Martin Marietta Corp., Orlando, Fla.
<eureka>
Automatic gain control quell's amplifier thump
by Paul Brokaw
Analog Device's Inc., Semiconductor Division, Wilmington, Mass.
<eureka>
6. Automotive circuit's
<eureka>
Precision auto tachometer squelche's point bounce
by James B. Young
Canadian General Electric Ltd. Peterborough, Ont., Canada
<eureka>
Sure-fire ignition system safely limit's engine rpm
by L. G. Smeins
Ball Brother's Research Corp., Boulder, Colo.
<eureka>
Ice warning indicator monitor's road condition's
by Steven E. Summer
Hauppauge, N.Y.
<eureka>
IC boost's starting energy for solid-state ignition
by Charle's R. Carter
McMaster University, Hamilton, Ont., Canada
<eureka>
Electronic switch control's automobile air conditioner
by L. G. Smeins
Ball Brother's Research Corp., Boulder, Colo.
<eureka>
Tail-biting one-shot keep's car-door light on
by B. D. Redmile
Salisbury, Rhodesia
<eureka>
IC timer make's economical automobile voltage regulator
by T. J. Fusar
Powell-Mac Electronic's, Madison, Wis.
<eureka>
Automobile ignition system is rugged and reliable
by J. P. Thomas
Litton Industrie's, Litton System's (Canada) Ltd., Rexdale, Ont., Canada
<eureka>
Tri-level indicator monitor's automobile's electrical system
by S. K. Wong
Torrance, California
<eureka>
7. Bridge circuit's
<eureka>
Feedback linearize's resistance bridge
by Robert D. Guyton
Mississippi State University, State College, Miss.
<eureka>
Winking LED note's null for IC-timer resistance bridge
by James A. Blackburn
Wilfrid Laurier University, Waterloo, Ont., Canada
<eureka>
Circular voltage divider need's fewer resistor's
by Dale Hileman
Physiometric's Inc., Malibu, Calif.
<eureka>
8. Clock circuit's
<eureka>
Micropower comparator's generate 2-phase clock
by Norman G. Wheelock
Siliconix Inc., Santa Clara, Calif.
<eureka>
Multiphase clock produce's nonoverlapping pulse's
by Glen Coers
Texas Instrument's, Component's Group, Dallas, Texas
<eureka>
Oscillator drive's digital clock when ac power fail's
by Robert C. Moore
Applied Physics Laboratory, Johns Hopkins University, Silver Spring, Md.
<eureka>
TTL interface circuit synchronize's computer clock
by Jim Crapuchette's
Stanford University Medical Center, Stanford, Calif.
<eureka>
Quad NAND gate package yield's two-frequency clock
by Howard L. Nurse
Applied Technology Division, Itek Corp., Palo Alto, Calif.
<eureka>
Generating overlapped clock phases for CCD array
by Hans-Jorg Pfleiderer and K. Knauer,
Siemen's AG, Munich, Germany
<eureka>
9. Comparator's
<eureka>
Phase comparator for servo loop's
by Francis E. Adams
San Bernadino Microwave Society, Corona, Calif.
<eureka>
TTL gates speed up
pulse-height analysis
by Joseph Laughter
University of Tennessee Medical Unit's, Memphis, Tenn.
<eureka>
One-shot/flip-flop pair's detect frequency band's
by Edward E. Pearson
Opelousas, La.
<eureka>
Simple logic circuit's compare binary number's
by Edward J. Murray
Inter-Computer Electronic's Inc., Lansdale, Pa.
<eureka>
Varying comparator hystersis without shifting initial trip point
by Jerald Graeme
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Window comparator need's only one op amp
by Jerald Gr'aeme
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Single op amp compare's bipolar voltage magnitude's
by F. N. Trofimenkoff and R. E. Smallwood
University of Calgary, Alta., Canada
<eureka>
Logic circuit select's most intense signal
by P. V. H. M. L. Narasimham
Indian Institute of Technology, Kanpur, India
<eureka>
Modified window comparator compensate's for temperature
by C. E. Musser
General Electric Co., Binghamton, N. Y.
<eureka>
10. Control circuit's
<eureka>
Complementary lighting control use's few part's
by Mark E. Anglin
Novar Electronic's Corp., Barberton, Ohio
<eureka>
Precision triac trigger has wide dynamic range
by Ronald Sans
Tampa, Fla.
<eureka>
Sampling regulator control's motor speed
by Philip Dempster
Este Instrument's Inc., Richmond, Calif.
<eureka>
Dc motor control circuit cancel's armature resistance
by Leland N. Van Allen
Idea's Inc., Beltsville, Md.
<eureka>
Stepper drive circuit boost's motor torque
by E. Wolf
Redactron Corp., Hauppauge, N.Y.
<eureka>
Logic circuit convert's synchronous motor to stepper
by Michael D. Doering
Food and Drug Administration, Bureau of Radiological Health, Rockville, Md.
<eureka>
Controlling ac load's with C-MOS bilateral switche's
by Arthur Johnson
Darlington, Md.
<eureka>
11. Counter's
<eureka>
Counter invert's period to measure low frequency
by Matthew L. Fichtenbaum
General Radio Co., Concord, Mass.
<eureka>
Up/down synchronous counter take's just four MSI package's
by Richard J. Bouchard
Sander's Associate's Inc., Nashua, N.H.
<eureka>
C-MOS counting circuit accumulate's 270 pulse's
by Robert M. Owen's and Kenneth J. Hintz
Naval Weapon's Laboratory, Dahigren, Va.
<eureka>
High-power counter drive's 20-watt load's
by Christopher Strangio
Villanova University, Villanova, Pa.
<eureka>
Transistor array convert's to fast-switching thyristor's
by H. S. Kothari
Central Electronic's Engineering Research Institute, Pilani, India
<eureka>
Potentiometer and timer control up/down counter
by Franck Gergek
Weston, Ont., Canada
<eureka>
External gate double's counter speed
by Jeffrey Mattox
United States Air Force, L. G. Hanscom Field, Bedford, Mass.
<eureka>
Ring counter eliminate's false gating signal's
by Glen Hamilton
Dickson, Tenn.
<eureka>
Low-speed counter use's low-priced calculator chip
by Dennis J. Flora
Steven's Institute of Technology, Hoboken, N.J.
<eureka>
12. Current source's
<eureka>
Controlled current source is versatile and precise
by Jerald Graeme
Burr-Brown Research Corp., Tucson Ariz.
<eureka>
Bilateral current source is digitally programable
by Andrew Olesin
Soltek, Montrose, Colo.
<eureka>
Controllable current source eliminate's matched resistor's
by James A. Stanko
State University of New York, Stony Brook, N.Y.
<eureka>
13. Detector's
<eureka>
Simple gating circuit mark's both pulse edge's
by Ralph Tenny
Texas Instrument's, Central Research Laboratorie's, Dallas, Texas
<eureka>
Differentiate and count to find frequency error
by Robert C. Rogers
Texas A&M University, College Station, Texas
<eureka>
Frequency discriminator use's one-shot and flip-flop
by Peter Alfke
Fairchild Semiconductor, Mountain View, Calif.
<eureka>
Schottky diode pair make's an rf detector stable
by Roland J. Turner
AEL Communication's Corp., Lansdale, Pa.
<eureka>
Temperature-stable decoder for modulated pulse width's
by H. R. Beurrier
Bell Telephone Laboratorie's, Murray Hill, N.J.
<eureka>
Video detector store's peak for minute's
by Steven Hayes
Altadena, Calif.
<eureka>
LED display show's beat frequency
by Sergio Franco
Oberlin College, Oberlin, Ohio
<eureka>
Radiation monitor has linear ouput
by Paul Prazak, Burr-Brown Research Corp., Tucson Ariz.,
and Lt. William B. Scott, Edward's AFB, Calif.
<eureka>
Overrange indicator can enhance frequency meter
by F. E. Hinkle
The Applied Research Laboratorie's, University of Texas, Austin, Texas
<eureka>
14. Digital-analog converter's
<eureka>
Logic driving gate's double
as d-a converter switche's
by Amos Wilnai
Monolithic Memorie's Inc., Sunnyvale, Calif.
<eureka>
No-ladder d-a converter work's from one 5-V supply
by E. Insam
Chelsea College, University of London, London, England
<eureka>
Digital-to-analog converter is built from low-cost part's
by Phillip J. Storey
Jands Pty. Ltd., Marrickville, N.S.W., Australia
<eureka>
Amplifier add's sign bit to d-a converter output
by Jerald Graeme
Burr-Brown Research Corp., Tucson, Ariz
<eureka>
15. Discriminator's
<eureka>
Adjustable discriminator clean's up signal noise
by Dennis D. Barber
University of Houston, Houston, Texas
<eureka>
Two-IC pulse discrimintor handle's wide range of input's
by Steven E. Holzman
ESL Inc., Sunnyvale, Calif.
<eureka>
Voltage discriminator has 0.1-mV resolution
by Ryszard Bayer
Institute of Nuclear Research, Swierk, Poland
<eureka>
Buffer keep's noise from triggering thyristor
by L. R. Rice
Westinghouse Semiconductor Division, Youngwood, Pa.*
<eureka>
16. Display circuit's
<eureka>
Scope display of eight signal's help's debug sequential logic
by Matthew L. Fichtenbaum
General Radio Co., Concord, Mass.
<eureka>
Chopping mode improve's multiple-trace display
by C. S. Pepper
IRT Corp., San Diego, Calif.
<eureka>
Graduated-scale generator calibrate's data display
by Ken E. Anderson
IBME, University of Toronto, Canada
<eureka>
PROM provide's linear or logarithmic display
by John Brady
Applied Research Laboratorie's University of Texas, Austin, Texas
<eureka>
Converter for oscilloscope provide's four-channel display's
by Grady M. Wood
Harris-Intertype Corp., Melbourne, Fla.
<eureka>
17. Encoder's and decoder's
<eureka>
PROM convert's binary code to drive 1 1/2-digit display
by V. R. Godbole
North Electric Co., Galion, Ohio
<eureka>
Converter change's 7-segment output to decimal of BCD
by Prentice L. Orswell
National Oceanic and Atmospheric Administration, Boulder, Colo.
<eureka>
Hexadecimal encoder debounce's keyboard
by Ralph Tenny
Texas Instrument's Inc., Dallas, Texas
<eureka>
Providing a decimal output for a calculator chip
by Jack Lambert
Lambert Associate's, Lexington, Mass.
<eureka>
Gray-code generator avoid's output glitche's
by Carl Moser
Western Electric Co., Winston-Salem, N.C.
<eureka>
18. Filter's
<eureka>
Digital-to-analog converter control's active filter
by Jerry Whitmore,
Analog Device's, Santa Clara, Calif.
<eureka>
Active filter has separate band and frequency control's
by John Jenkins
Montgomery, Ala.
<eureka>
Wien bridge in notch filter give's 60 dB rejection
by Donald DeKold
University of Florida, Gainesville, Fla.
<eureka>
Voltage-tuned filter varie's center frequency linearly
by Vassilios J. Georgiou
University of Massachusetts, Amherst, Mass.
<eureka>
Tunable active filter has switchable response
by Philbrook Cushing
La Jolla, Calif.
<eureka>
Two-IC digital filter varie's passband easily
by Andrew M. Volk
University of Wisconsin, Madison, Wis.
<eureka>
Analog filter can be programed digitally
by Leonard M. Smithline
Lansing Research Corp., Ithaca, N.Y.
<eureka>
Narrowband digital filter achieve's high Q's
by Thomas A. Visel
University of Illinois, Urbana, III.
<eureka>
Tunable notch filter suppresse's hum
by Peter Lefferson
Milton Roy Co., St. Petersburg, Fla.
<eureka>
Nonlinear low-pass filter reject's impulse signal's
by Barrie Gilbert
Analog Device's Semiconductor, Wilmington, Mass.
<eureka>
State-variable filter use's only two op amp's
by Charles Croskey
Pennsylvania State University, University Park, Pa.
<eureka>
Three-mode network is filter or oscillator
by Michel Baril
University of Quebec, Montreal, Quebec, Canada
<eureka>
19. Frequency divider's
<eureka>
TTL decade counter divide's pulse train by any integer
by T. Durgavich and D. Abram's
Abrams Associate's, Arlington, Mass.
<eureka>
Control one-shot divide's frequency by up to 30
by Jerome Snaper
Leach Corp., Control's Div., Azusa, Calif.
<eureka>
Binary division produce's harmonic frequencie's
by Donald DeKold
Santa Fe Junior College, Gainesville, Fla.
<eureka>
20. Frequency doubler's
<eureka>
Frequency doubler accept's any waveshape
by Donald DeKold
Santa Fe Junior College, Gainesville, Fla.
<eureka>
Pulse-frequency doubler require's no adjustment
by Thomas McGahee
Don Bos'co Technical High School, Boston, Mass.
<eureka>
Switched frequency doubler provide's multiple output's
by Michael F. Black
Texas Instrument's, System's Analysis Section, Dallas, Texas
<eureka>
Frequency-doubler produce's square-wave output
by Robert L. Taylor
I&F Electronic's, Nashville, Tenn.
<eureka>
21. Frequency synthesizer's
<eureka>
Long/short-period pulse's speed synthesizer setting
by Gregory W. M. Yuen
University of Technology, Loughborough, Leicestershire, England
<eureka>
Thumbwheel switche's set synthesizer output frequency
by Jerrold L. Foote
University of Utah College of Medicine, Salt Lake City, Utah
<eureka>
22. Function generator's
<eureka>
Norton quad amplifier can be a low-cost function generator
by P. Vlcek
Orbit Control's Ltd.
Cheltenham, Gloucester, England
<eureka>
Counter and decoder/driver
produce's staircase voltage
by Donald F. Dekold
Santa Fe Community College, Gainesville, Fla.
<eureka>
Synchronous ramp generator maintain's output linearity
by D. M. Brockman
Boeing Co., Seattle, Wash.
<eureka>
Triangular-wave generator span's eight decade's
by William S. Shaw
University of Texas, Applied Research Laboratorie's, Austin, Texas
<eureka>
Staircase generator resist's output drift
by Maxwell Strange
NASA, Goddard Space Flight Center, Greenbelt, Md.
<eureka>
Generating tone burst's with only two IC timer's
by L. W. Herring
LWH Associate's, Dallas, Texas
<eureka>
Waveform is synthesized from linear segment's
by E. D. Urbanek
Bell Telephone Laboratorie's, Murray Hill, N.J.
<eureka>
Link-coupled tank circuit step's up C-MOS drive voltage
by R. W. Mouritsen
National Research Council of Canada, Ottawa, Canada
<eureka>
Square-wave generator stresse's frequency stability
by S. F. Aldridge
IBM Corp., General Product's Div., San Jose, Calif.
<eureka>
Digital pulse's synthesize audio sine wave's
by Patrick L. McGuire
General Dynamic's, Pomana, Calif.
<eureka>
Timer IC stabilize's sawtooth generator
by Frank N. Cicchiello
Geometric Data Corp., Wayne, Pa.
<eureka>
Triangular wave's from 555 have adjustable symmetry
by Devlin M. Gualtieri
University of Pittsburgh, Pittsburgh, Pa.
<eureka>
Frequency divider plus op amp approximate's sine wave
by John Taylor,
NOAA, Boulder, Colo.
<eureka>
23. Instrument circuit's
<eureka>
Voltage-to-current converter for process-control system's
by Harry L. Trietley, Jr.
Taylor Instrument Process Control Div., Sybron Corp., Rochester, N.Y.
<eureka>
Data averager for panel meter operate's from meter's clock
by George Mitchell and Richard D. Spencer
University of Illinois, Urbana, III.
<eureka>
Capacitor correct's drift for analog data amplifier
by Charles Walton*
IBM Corp., System's Development Division, San Jose, Calif.
<eureka>
Low-drift IC's form instrumentation amplifier
by K. C. Seino
Fermi National Accelerator Laboratory, Batavia, III.
<eureka>
Integrated multiplier simplifie's wattmeter design
by Donald DeKold
Santa Fe Community College, Gainesville, Fla.
<eureka>
24. Integrator's
<eureka>
Two-amplifier integrator extend's timing performance
by Nabil R. Bechai
Leigh Control's Ltd., Ottawa, Ont., Canada
<eureka>
Inverting transistor boost's integrator's time constant
by Roland J. Turner
General Electric Space Division, King of Prussia, Pa.
<eureka>
Miller-effect integrator's act as signal separator
by Dale Hileman
Sphygmetric's Inc., Woodland Hills, Calif.
<eureka>
Precision integrator reset's as it sample's
by Dennis J. Knowlton
University of Wyoming, Laramie, Wyo.
<eureka>
25. Inverter's
<eureka>
Single bipolar transistor invert's pulse's on command
by Dale Hileman
Sphygmetric's Inc., Woodland Hills, Calif.
<eureka>
Digital command invert's signal
by Craig J. Hartley
Baylor College of Medicine, Houston, Texas
<eureka>
Transistor array cut's cost of algebraic inversion
by Pavel Ghelfan
M.G. Electronic's Ltd., Rehovot, Israel
<eureka>
26. Limiter's
<eureka>
Broadband cutoff limiter is phase-transparent
by Roland J. Turner
RCA Missile & Surface Radar Division, Moorestown, N.J.
<eureka>
Linear signal limiting with feedback multiplier
by R. J. Karwoski
Raytheon Co., Equipment division, Sudbury, Mass.
<eureka>
27. Logic circuit's
<eureka>
Unclocked logic element make's quick decision's
by Leslie K. Torok
University of Toronto, Toronto, Ont., Canada
<eureka>
Simplifying sum-correction logic for adding two BCD number's
by Robert D. Guyton
Mississippi State University, Mississippi State, Miss.
<eureka>
Circuit add's BCD number's faster with less harware
by Dharma P. Agrawal
Federal Polytechnic Institute of Lausanne, Switzerland
<eureka>
Common-gate, common-base circuit's shift voltage level's
by Peter J. Bunge
Atomic Energy of Canada Ltd., Chalk River, Ontario
<eureka>
IC logic unit's simplify binary number conversion
Binary number conversion
by Harvey F. Hoffman
Norden Division, United Aircraft Corp., Norwalk, Conn.
<eureka>
Serial digital multiplier handle's two five-bit number's
by T. K. Tawfig and H. L. Hvim's
Allerod, Demark
<eureka>
Gate threshold difference produce's initializing pulse
by Jose Souto Martins
GTE Automatic Electric Inc., Northlake, III.
<eureka>
Logic probe with LED display check's ECL circuit's
by William Wilke
University of Wisconsin, Madison, Wis.
<eureka>
Simple gating circuit monitor's real-time input's
by David F. Hood
Bell-Northern Research, Ottawa, Canada
<eureka>
NAND gate's and inverter synchronize control signal
by Robert L. White
Applied Research Laboratorie's, University of Texas, Austin, Texas
<eureka>
28. Memory circuit's
<eureka>
Memory, peripheral's share microprocessor address range.
by James A. Kuzdrall
Candia, N.H.
<eureka>
Feedback latch reduce's memory recovery time
by Joseph McDowell and William Moss
Monolithic Memorie's Inc., Sunnyvale, Calif.
<eureka>
Register-addressing system accesse's within nanosecond's
by C.A.N. Conde, C.A. Correia, and A.D. Figueiredo
University of Coimbra, Portugal
<eureka>
Buffer speed's response time of first-in, first-out memory
by Jim Edrington
Applied Research Laboratorie's, University of Texas, Austin, Texas
<eureka>
Storing computer data with a cassette recorder
by Richard Eckhardt
Massachusett's Institute of Technology, Cambridge, Mass.
<eureka>
One NOR gate start's shift-register loop
by Jean-Pierre Dujardin
Ohio State University, Columbus, Ohio
<eureka>
29. Mircroprocessor's
<eureka>
Hardware help's in tracing microprocessor program
by Jeffrey L. Zurkow
Hampshire College, Amherst, Mass.
<eureka>
Coverter let's processor drive teletypewriter
by Richard C. Pasco
Stanford University, Standford, Calif.
<eureka>
Dual-555-timer circuit restart's microprocessor
by James R. Bainter
Motorla Semiconductor Product's, Phoenix, Ariz.
<eureka>
Interfacing a teletypewriter with an IC microprocessor
by Steven K. Roberts
Cybertronic System's, Louisville, Ky.
<eureka>
IC's interface keyboard to microprocessor
by Donald P. Martin and Kerry S. Berland
Martin Research Ltd. Chicago, III.
<eureka>
PROM decoder replace's chip-enabling logic
by Roy Blacksher
Signetic's, Sunnyvale, Calif.
<eureka>
Circuit's step's program for 8080 debugging
by John F. Wakerly
Stanford University, Stanford, Calif.
<eureka>
30. Modulator's and demodulator's
<eureka>
Digital demodulator for phase-shift-keyed data
by C. A. Herbst
Technology Resource's, Paris
<eureka>
Amplitude modulator is highly linear
by Donald DeKold
Santa Fe Junior College, Gainesville, Fla.
<eureka>
Mark/space modulator drive's acoustic coupler
by Jack D. Dennon
Computerphone System's, Renton, Wash.
<eureka>
Low-distortion modulator test's hi-fi a-m tuner's
by M. J. Salvati
Sony Corp. of America, Long Island City, N.Y.
<eureka>
Coherent phase modulation attain's data rate's of 100 MHz
by Roland J. Turner
General Electric Co., Space Division, King of Prussia, Pa.
<eureka>
FSK modem interface's cassette and computer
by John I. Compton
Wenner-Gren Laboratory, University of Kentucky, Lexington, Ky.
<eureka>
Binary rf phase modulator switche's in 3 nanosecond's
by Roland J. Turner
AEL Communication's Corp., Lansdale, Pa.
<eureka>
Mark/space demodulator employ's active filter's
by Michael J. Gordon Jr.
Psynexus System's Wilmette, III.
<eureka>
Fast-switching modulator reverse's uhf signal phase
by R. N. Assaly
Massachusetts Institute of Technology, Lexington, Mass.
<eureka>
Variable-gain amplifier yield's linear rf modulator.
by Michael F. Black
Equipment Group, Texas Instrument's, Dallas, Texas
<eureka>
31. Multiplexer's
<eureka>
Gated MOSFET act's as multiplexing switch
by Glen Coers
Texas Instrument's, Dallas, Texas
<eureka>
Wired-OR DTL gate's increase multiplexer input capacity
by Eric G. Breeze
Fairchild Semiconductor, Mountain View, Calif.
<eureka>
32. Multivibrator's
<eureka>
Output comparator enhance's versatility of one-shot
by Harvey J. Scherr*
Westinghouse Corp., System's Development Div,. Baltimore, Md.
<eureka>
Multivibrator clock obey's digital command's
by Patrick L. McGuire
General Dynamic's, Electrodynamic division, Pomana, Calif.
<eureka>
Exclusive-OR gate make's bidirectional one-shot
by Tim O'Toole
Tektronix, Inc., Beaverton, Ore.
<eureka>
Double-duty multivibrator give's complementary output's
by Edward Beach
National Radio Institute, McGraw-Hill Inc., Washington, D.C.
<eureka>
Programable monostable is immune to supply drift
by Mahendra J. Shah
University of Wisconsin, Madison, Wis.
<eureka>
Astable multivibrator need's only one capacitor
by Glen Coers
Texas Instrument's, Dallas, Texas
<eureka>
IC timer circuit yield's 50% duty cycle
by Frank N. Cicchiello
Geometric Data Corp., Wayne, Pa.
<eureka>
Programable multivibrator is four-in-one circuit
by Edward Beach
McGraw-Hill Continuing Education's Co., Washington, D. C.
<eureka>
Monostable's pulse width is programable
by C. F. Reeve's
Del Mar, Calif.
<eureka>
33. Operational amplifier's
<eureka>
Helping a 709-type op amp to outperform itself
by Jiri'Dost'al
Research Institute for Mathematical Machine's, Prague, Czechoslov'akia
<eureka>
Complementary output stage improve's op-amp response
by Robert Gagnon and Richard Karwoski
Raytheon Co., Equipment division, Sudbury, Mass.
<eureka>
Controlling op amp gain with one potentiometer
by T. Frank Ritter
San Antonio, Texas
<eureka>
FET-controlled op amp permit's wide dynamic range
by Henry E. Santana
Hewlett-Packard Loveland Instrument Division, Loveland, Colo.
<eureka>
Serie's-connected op amp's null offset voltage
by Lawrence Choice
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Continuing biasing improve's clamping amplifier
by Jerry Graeme
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
More application's for the 741-type op amp
by Edward Beach
McGraw-Hill Continuing Education Center, Washington, D.C.
<eureka>
Combined op amp's improve over-all amplifier response
by William Ott
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Op amp's multiply RC time constant's
by Quentin Bristow
Geological Survey of Canada, Ottawa, Ont., Canada
<eureka>
FET program's op amp for invertible gain
by Ken A. Dill and Mark Troll
Revelle College, University of California, La Jolla, Calif.
<eureka>
34. Optoelectronic circuit's
<eureka>
Negative feedback keep's LED intensity constant
by Ken Erickson
Interstate Electronic's Corp., Anaheim, Calif.
<eureka>
Analog voltage sensor control's LED thereshold
by Thomas Mazur
Motorola Semiconductor Product's, Phoenix, Ariz.
<eureka>
Matched optical coupler's stabilize isolation circuit
by Arnold Nielsen
Ford Motor Co., Dearborn, Mich.
<eureka>
Optocoupler convert's ac tone to digital logic level's
by Louis E. Frenzel
Heath Co., Benton Harbor, Mich.
<eureka>
Optically coupled ringer doesn't load phone line
by William D. Kraengel Jr.
Valley Stream, N.Y.
<eureka>
35. Oscillator's
<eureka>
One-op-amp oscillator keep's sine-wave amplitude constant
by Dale Hileman
Sphygmetric's Inc. Woodland Hills, Calif.
<eureka>
Low-distortion oscillator use's state-variable filter
by Walter G. Jung
Forest Hill, Md.
<eureka>
Complementary JFETS form bimode oscillator
by Gregory Hodowanec
Newark, N.J.
<eureka>
Modified function generator yield's linear VCO
by Antonio Tagliavini
Bologna, Italy
<eureka>
ECL tuned oscillator's are voltage-stable
by Tom Hornak
Hewlett-Packard Co., Palo Alto, Calif.
<eureka>
Antilog function generator keep's VCO output linear
by J. A. Connelly and C. D. Thompson
Georgia Institute of Technology, Atlanta, Ga.
<eureka>
Common silicon diode's stabilize oscillator
by Dale Hileman
Sphygmetric's Inc., Woodland Hills, Calif.
<eureka>
Stable crystal oscillator work's over wide supply range
by Terence King
Oroco Communication's Inc., Middletown, N.Y.
<eureka>
Negative-resistance generator has controllable response
by Samuel E. Bigbie
IBM General System's Division, Boca Raton, Fla.
<eureka>
ECL IC oscillate's from 10 to 50 MHz
by William A. Palm
Control Data Corp., Minneapolis, Minn.
<eureka>
C-MOS minimize's the size of crystal oscillator's
by S. S. Chuang
Statek Corp., Orange, Calif.
<eureka>
ECL gate's stretch oscillator range
by William Blood
Motorola Semiconductor Product's Inc., Phoenix, Ariz.
<eureka>
36. Phase-lock circuit's
<eureka>
Feedback in phase-locked loop linearize's phase demodulator
by Ron Rippy
Rf Technology Branch, Goddard Space Flight Center, Greenbelt, Md.
<eureka>
Phase-locked loop adjust's to varying signal condition's
by Charles A. Watson
E-System's Inc., Greenville, Texas
<eureka>
Circumventing BCD addition in digital phase-locked loop's
by Larry Martin
Hewlett-Packard Co., Palo Alto, Calif.
<eureka>
Phase-locked loop include's lock indicator
by J. A. Connelly and G. E. Prescott
Georgia Institute of Technology, Atlanta, Ga.
<eureka>
Logic gate's and LED indicate phase lock
by R. P. Leck
Bell Laboratorie's, Crawford Hill, Holmdel, N.J.
<eureka>
Analog multiplier/divider simplifie's frequency locking
by Moise Hamaoui
Fairchild Semiconductor, Mountain View, Calif.
<eureka>
37. Phase shifter's
<eureka>
Output's of op-amp network's have fixed phase difference
by Richard K. Dickey
California Polytechnic State University, San Luis Obispo, Calif.
<eureka>
All-digital phase shifter handle's 5-to-1 bandwidth
by Aleardo Salina
Siai Marchetti, Vergiate, Italy
<eureka>
Frequency doubler and flip-flop make adjustable phase shifter
by Vladimir Brunstein
Nova Electric Mfg. Co., Nutley, N.J.
<eureka>
38. Potentiometer circuit's
<eureka>
Linear pot and op amp provide tapered audio volume control
by Robert C. Moore
Applied Physics Laboratory, Johns Hopkins University, Silver Spring, Md.
<eureka>
Serie's resistance improve's potentiometer linearity
by Harry H. Schwartz
Electrodesign Ltd., Ville Lasalle, Quebec, Canada
<eureka>
39. Power supplie's
<eureka>
Voltage doubler's power microprocessor PROM's
by Andrew Longacre Jr.
University of New Orlean's, New Orlean's, La.
<eureka>
Inverting dc-to-dc converter's require no inductor's
by Craig Scott and R. M. Stitt
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
IC timer's control dc-dc convert's
by P. R. K. Chetty
Indian Scientific Satellite Project, Bangalore, India
<eureka>
Compact dc-dc converter yield's ~`_15 V from +5 V
by Thomas Durgavich
Massachusettes Institute of Technology, Cambridge, Mass.
<eureka>
Power-supply add-on yield's variable-ratio output
by Ying-Lau-Lee
Cambridge, Mass.
<eureka>
Regulated power supply is adjustable from 0 to 38 V
by Frank P. Miles
Rochester, N.Y.
<eureka>
Gate bias circuit for n-MOS run's from 5-V TTL supply
by Bud Broeker
Motorola Semiconductor Product's, Phoenix, Ariz.
<eureka>
Filament transformer output drop's cost of 400-Hz supply
by Glen Coers
Texas Instrument's, Component's Group, Dallas, Texas
<eureka>
IC timer and voltage doubler form a dc-dc converter
by Todd Gartner
Motorola Inc., Automotive Research & Development, Franklin Park, III.
<eureka>
SCR zero-cross trigger limit's maximum load power
by Richard Eckhardt
Electronic's Consulting & Development, Cambridge, Mass.
<eureka>
Handy supply provide's fixed and variable output's
By John Predescu
Buchler Instrument's Division, Nuclear-Chicago Corp., Fort Lee, N.J.
<eureka>
Eliminating current spiking from dc-to-dc converter's
by Carlo Venditti
Charles Stark Draper Laboratory, MIT, Cambridge, Mass.
<eureka>
SCR crowbar circuit fire's quickly and surely
by Steve Summer
Hauppauge, N.Y.
<eureka>
C-MOS voltage monitor protect's Ni-Cd batterie's
by William Wilke
University of Wisconsin, Madison, Wis.
<eureka>
Inexpensive power supply produce's zero-ripple output
by Rod Spencer
Chlorescope System's, Linden, N.J.
<eureka>
Timer circuit generate's precision power-on reset
by Jim Felps
Texas Instrument's, Austin, Texas
<eureka>
Crowbar protection circuit sense's load voltage directly
by Thomas E. Skopal
Acopian Corp., Easton, Pa.
<eureka>
Pulsed standby battery save's MOS memory data
by K. C. Herrick
Fisher Berkeley Corp., Emeryville, Calif.
<eureka>
One lamp can monitor battery voltage
by N. D. Thai
Huntec Ltd., Toronto, Ont., Canada
<eureka>
2.4-V battery backup protect's microprocessor memory
by Raymond N. Bennett
Advanced Technology Laboratorie's Inc., Bellevue, Wash.
<eureka>
Four-ampere power supply cost's just $13 to build
by Joseph Ennis
Automation Industrie's, Inc., Vitro Laboratorie's Division, Silver Spring, Md.
<eureka>
40. Programmable gain control's
<eureka>
Digital word set's gain of amplifier
by Craig J. Hartley
Baylor College of Medicine, Houston, Texas
<eureka>
D-a converter form's programable gain control
by Jim Edrington
The Applied Research Laboratorie's, University of Texas, Austin, Texas
<eureka>
Combination logic cut's part's in digitally controlled amplifier
by Reinhard Metz
Bell Laboratorie's, Naperville, III.
<eureka>
41. Protection circuit's
<eureka>
Phase-sequence detector trip's circuit breaker
by Terry Malarkey
Motorola Semiconductor Product's Inc., Phoenix, Ariz.
<eureka>
Current and power limiter protect's switching transistor
by R. M. Stitt
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Diode's switch high power to protect sonar receiver
by F. E. Hinkle
Applied Research Laboratorie's, The University of Texas, Austin, Texas
<eureka>
Sensing resistor limit's power-supply current
by Theo W. Smit
Euratom, Ispro, Italy
<eureka>
Two diode's protect logic-level translator
by P. R. K. Chetty
Indian Scientific Satellite Project, Bangalore, India
<eureka>
Digital transient suppressor eliminate's logic error's
by Christopher Strangio
Villanova University, Villanova, Pa.
<eureka>
Voltage regulator protect's logic pull-up transistor's
by Stephen F. Moore
Resdel Engineering Corp., Arcadia, Calif.
<eureka>
Power-failure detector is good for short lapse's
by K. C. Seino,
Fermi National Accelerator Laboratory, Batavia, III.
<eureka>
How to prevent spurious tripping of protection circuit's
by Thomas E. Skopal
Acopian Corp., Easton, Pa.
<eureka>
C-MOS reset circuit ignore's brief outage's
by Roger F. Atkinson
ITEC Inc., Huntsville, Ala.
<eureka>
Overvoltage indicator can be added to C-MOS IC tester
by Rajni B. Shah
Rohde & Schwarz, Fairfield, N.J.
<eureka>
42. Pulse generator's
<eureka>
Nanosecond-pulse generator is powered by two D cell's
by M. J. Salvati
Sony Corp. of America, Long Island City, N.Y.
<eureka>
Generating pulse's with C-MOS flip-flop's
by F. J. Marlowe and J. P. Hasili
RCA Laboratorie's, Princeton, N.J.
<eureka>
Preset generator produce's desired number of pulse's
by Glen Coers
Texas Instrument's, Component's Group, Dallas, Texas
<eureka>
Controlling duty cycle and rep rate independently
by W. D. Harrington
University of Florida, Communication Science's Laboratory, Gainesville, Fla.
<eureka>
Pulse generator accuracy is immune to aging
by Frank Cicchiello
Digilog System's Inc., Willow Grove, Pa.
<eureka>
Generator's duty cycle stay's constant under load
by. Arthur R. Klinger
School of Health Care Science's, Sheppard AFB, Wichita Falls, Texas
<eureka>
Generator independently varie's pulse rate and width
by Mahendra Shah
Univ. of Wisconsin, Space Science and Engineering Center, Madison. Wis.
<eureka>
Generating nanosecond pulse's with TTL monostable's
by Robert J. Broughton
Yale University, New Haven, Conn.
<eureka>
Single switch regulate's number of pulse's
by Mahesh Bhuta
IBM Corp., General Product's division, San Jose, Calif.
<eureka>
Binary input determine's pulse-generator frequency
by Mahendra J. Shah
University of Wisconsin, Madison, Wis.
<eureka>
Pulse generator produce's programable burst
by John F. Wakerly
Stanford University, Stanford, Calif.
<eureka>
Bootstrap circuit generate's high-voltage pulse train
by Lawrence H. Bannister
Center for Space Research, MIT, Cambridge, Mass.
<eureka>
Delay line in shift register speed's m-sequence generation
by J. T. Harvey
Amalgamated Wireless (Australasia) Ltd., North Ryde, Australia
<eureka>
One-shot with feedback loop maintain's constant duty cycle
by H. P. D. Lanyon
Worcester Polytechnic Institute, Worcester, Mass.
<eureka>
Adjustable pulse generator feature's rate alarm
by Frank N. Cicchiello
Geometric Data Corp., Wayne, Pa.
<eureka>
43. Rectifier's
<eureka>
Rectifying wide-range signal's with precision, variable gain
by Jerald Graeme
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Comparator and D-MOS switch rectify small signal's linearly
by Tom Copper
TRW System's, Redondo Beach, Calif.
<eureka>
Full-wave rectifier need's only three matched resistor's
by Jerald Graeme
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Op amp with feedback make's full-wave rectifier
by Richard Knapp and Roger Melen
Stanford University, Palo Alto, Calif.
<eureka>
44. Security circuit's
<eureka>
Latch circuit's interlock remote switche's electrically
by Jack Elias
Honeywell Inc., Fort Washington, Pa.
<eureka>
Auto intrusion alarm use's C-MOS circuit's
by F. E. Hinkle
Applied Research Laboratorie's, University of Texas, Austin, Texas
<eureka>
Twin oscillator's form intruder detector
by Joshua Premack
Honeywell Inc., North Hopkin's, Minn.
<eureka>
Electronic combination lock offer's double protection
by Louis F. Caso
Bethpage, N.Y.
<eureka>
Digital combination lock is virtually crackproof
by Dale Platteter
Naval Weapon's Support Center, Crane, Ind.
<eureka>
45. Sensor's
<eureka>
Capacitive transducer sense's tension in muscle fiber's
by Robert M. Wise
Medical College of Virginia, Richmond, Va.
<eureka>
Photodetector sense's motion in noisy surrounding's
by Richard T. Laubach
National Cash Register Co., Cambridge, Ohio
<eureka>
Two-component light sensor has high voltage output
by Thomas T. Yen
Statham Instrument's Inc., Oxard, Calif.
<eureka>
46. Switching circuit's
<eureka>
Doubling breakdown voltage with cascoded transistor's
by Peter T. Uhler
Tinker Air Force Base, Midwest City, Okla.
<eureka>
Solid-state dpdt switch prodive's current reversal
by Don DeKold
Santa Fe Junior College, Gainesville, Fla.
<eureka>
Attenuating transient's in analog FET switche's
by Leland Shaeffer
Siliconix Inc., Santa Clara, Calif.
<eureka>
Transistor gating circuit cut's signal delay to 100 ps
by Arthur J. Metz
Tektronix Inc., Beaverton, Ore.
<eureka>
Op amp cancel's video switching transient's
by Steven E. Holzman
Electromagnetic System's Laboratorie's, Sunnyvale, Calif.
<eureka>
Analog gate and zener diode give 70-dB isolation at 80MHz
by Roland J. Turner,
General Electric Co., King of Prussia, Pa.
<eureka>
C-MOS touch-switch array control's analog signal's
by Max W. Hauser
Berkeley, Calif.
<eureka>
Switching large ac load's with logic-level signal's
by Lynn S. Bell, Bell Engineering, Tucson, Ariz.,
and R. M. Stitt, University of Arizona, Tucson, Ariz.
<eureka>
47. Temperature control's
<eureka>
Diode plus low-cost op amp make's accurate thermostat
by Robert Koss
Adac Inc., Colchester, Vt.
<eureka>
Soldering iron convert's to constant-temperature probe
by Mahendra J. Shah
Univ. of Wisconsin, Space Science and Engineering Center, Madison, Wis.
<eureka>
Using transistor array's for temperature compensation
by Mahendra J. Shah
University of Wisconsin, Madison, Wis.
<eureka>
Diode pair sense's differential temperature
by Don DeKold
Dekolab's, Gainesville, Fla.
<eureka>
Temperature compensation for high-frequency transistor's
by Bert K. Erickson
General Electric Co., Syracuse, N.Y.
<eureka>
Direct-reading coverter yield's temperature
by James Williams and Thomas Durgavich
Massachusetts Institute of Technology, Cambridge, Mass.
<eureka>
48. Timing circuit's
<eureka>
Silent timer warn's of tape run-out
by Vernon R. Clark
Applied Automation Inc., Bartlesville, Okla.
<eureka>
Compensating the 555 timer for capacitance variation's
by Kenneth Lickel
Phillips Medical System's Inc., Shelton, Conn.
<eureka>
Discriminator display's first of four response's
by John S. French
Western Electric Co., Inc., Sunnyvale, Calif.
<eureka>
Simple logic arrangement identifie's first event
by Stephen Phelps
Santa Fe Community College, Gainesville, Fla.
<eureka>
Making music with IC timer's
by Kenneth R. Dugan
General Telephone and Electronic's, Clearwater, Fla.
<eureka>
Extending time delay with an emitter-follower
by Victor Hatch
Peripheral Power System's, San Jose, Calif.
<eureka>
Getting extra control over output period's of IC timer
by Arthur R. Klinger
United States Air Force, Sheppard Air Force Base, Wichita Falls, Texas
<eureka>
Digital clock/calendar offer's dual-mode display
by Gregory A. Baxes
BaKad Electronic's, Mill Valley, Calif.
<eureka>
Timer pulse width's range from second's to hour's
by Ken Erickson
Interstate Electronic's Corp., Anaheim, Calif.
<eureka>
49. Trigger's
<eureka>
Schmitt trigger prevent's clock train overlap
by R. R. Osborn
Robert's Enterprise's, Flagstaff, Ariz.
<eureka>
Integrated timer operate's as variable Schmitt trigger
by Maj. Arthur R. Klinger
United States Air Force, McCoy Air Force Base, Fla.
<eureka>
50. Voltage reference's
<eureka>
Stable voltage reference use's single power supply
by Mahendra J. Shah
University of Wisconsin, Madison, Wis.
<eureka>
Single-supply reference source use's self-regulated zener
by William Goldfarb
Cornell University, Ithaca, N.Y.
<eureka>
Variable voltage source has independently adjustable TC
by Nathan O. Sokai
Design Automation Inc., Lexington, Mass.
<eureka>
51. Voltage regulator's
<eureka>
Extra resistor help's regulator share load with transistor
by Dale Hileman
Sphygmetric's Inc.
Woodland Hills, Calif.
<eureka>
555 as switching regulator supplie's negative voltage
by S. L. Black
Western Electric Co., Columbus, Ohio
<eureka>
Regulator for standby supply handle's large load current's
by James Allen
Honeywell Inc., Aerospace Division, St. Petersburg, Fla.
<eureka>
Temperature limiting boost's regulator output current
by Mahendra J. Shah
University of Wisconsin, Space Science & Engineering Center, Madison, Wis.
<eureka>
Boosting IC regulator current with almost no power loss
by Don Kesner
Motorola Inc., Semiconductor Product's Div., Phoenix, Ariz.
<eureka>
Adding foldback resistor provide's overload safety
by William J. Riley
General Radio Co., Bolton, Mass.
<eureka>
Current-sharing design boost's regulator output
by Marvin Vander Kool
National Semiconductor Corp., Santa Clara, Calif.
<eureka>
Economical serie's regulator supplie's up to 10 ampere's
by J. E. Buchanan and C. W. Nelson
Westinghouse Electric Corp., System's Development Division, Baltimore, Md.
<eureka>
Switching regulator produce's constant-current output
by Steven E. Summer
Hauppauge, N.Y.
<eureka>
Regulating supply voltage all the way down to zero
by Brother Thomas McGahee
Don Bosco Technical School, Boston, Mass.
<eureka>
Regulator for op amp's practically power's itself
by Richard Eckhardt
Electronic's Consulting & Development, Cambridge, Mass.
<eureka>
Regulating voltage with just one quad IC and one supply
by R. A. Koehler
York University, Toronto, Canada
<eureka>
Regulating high voltage with low-voltage transistor's
by Mahendra J. Shah
University of Wisconsin, Madison, Wis.
<eureka>
Regulating high voltage's with low-voltage zener's
by Glen Coers
Texas Instrument's, Component's Group, Dallas, Texas
<eureka>
Other important book's from McGraw-Hill
<eureka>
Basic's of Data Communication's
<eureka>
Edited by Harry R. Karp,
Editor-in-Chief, Data Communication's.
303 pp., illus.
<eureka>
Aimed at specialist's and manager's who need to know about thepresent state of the art of network's, the book provide's information to help you participate in and contribute to the growth of this increasingly important and sophisticated field. It familiarized you with the presently available method's and equipment that can be utilized to tailor a data communication's system to the particular need's of a specific business operation. It also alert's you to the kind's of network's and data communication application's that are predicted for the future. A highly useful feature is the book's discussion of cost's, which are so important in the design and operation of any data communication's network.
<eureka>
Large Scale Integration
<eureka>
Edited by Laurence Altman,
Sr. Editor, Electronic's.
216 pp., illus.
<eureka>
With new semiconductor technique's, low-cost circuit's can now perform even the most demanding processing job's, but the technology has advanced so fast and in so many form's that the design information is widely scattered in the literature. This practical book answer's the need for a central depository of LSI information. Covering a wide range of LSI application's, technology, breakthrough's, and problem-solving method's, it contain's the essential building block's of an array of powerful new ciruit tool's. Whether you deal with equipment or system's, you can greatly benefit by applying LSI in solving day-to-day problem's.
<eureka>
Applying Microprocessor's
New Hardware, Software and Application's
<eureka>
Edited by Laurence Altman
and Stephen Scrupski.
200 pp., illus.
<eureka>
In few short year's, microprocessor's have developed from a promising new technology into the most versatile and powerful tool's electronic's engineer's have ever had. Their application's seem almost limitless. Wherever a programmable, large-scale-integrtaed circuit can be worked into a system, there's a remarkably inexpensive microprocessor for the job. This collection of recent article's from ELECTRONIC'S is designed to smooth your way to mastery of the new microprocessor design method's. It give's you both an overview of the state of the art and a wealth of design idea's, analyse's, and practical application's. Plenty of diagram's, chart's, table's, and photograph's complement the text of this unique reference.
<eureka>
Microprocessor's
<eureka>
Edited by Laurence Altman,
Sr. Editor, Electronic's,
216 pp., illus.
<eureka>
The microprocessor is on the threshold of becoming a billion-dollar industry. This collection of acticle's from Electronic's magazine was published to give you a general overview of the technology, provide design idea's, analyze specific system's, and explain many practical application's. Generously illustrated with diagram's, photograph's, chart's, and table's, the volume is a valuable reference for every engineer and designer interested in the ever-expanding microprocessor field and it's practical application's in system's.
<eureka>
At your bookstore or write to Suite 26-1, McGraw-Hill
<eureka>
McGraw-Hill Book Company
Serving the Need for Knowledge
1221 Avenue of the America's
New York, N.Y. 10020
<eureka>
Other important book's from McGraw-Hill
<eureka>
Basic's of Data Communication's
<eureka>
Edited by Harry R. Karp,
Editor-in-Chief, Data Communication's.
303 pp., illus.
<eureka>
Aimed at specialist's and manager's who need to know about thepresent state of the art of network's, the book provide's information to help you participate in and contribute to the growth of this increasingly important and sophisticated field. It familiarized you with the presently available method's and equipment that can be utilized to tailor a data communication's system to the particular need's of a specific business operation. It also alert's you to the kind's of network's and data communication application's that are predicted for the future. A highly useful feature is the book's discussion of cost's, which are so important in the design and operation of any data communication's network.
<eureka>
Large Scale Integration
<eureka>
Edited by Laurence Altman,
Sr. Editor, Electronic's.
216 pp., illus.
<eureka>
With new semiconductor technique's, low-cost circuit's can now perform even the most demanding processing job's, but the technology has advanced so fast and in so many form's that the design information is widely scattered in the literature. This practical book answer's the need for a central depository of LSI information. Covering a wide range of LSI application's, technology, breakthrough's, and problem-solving method's, it contain's the essential building block's of an array of powerful new ciruit tool's. Whether you deal with equipment or system's, you can greatly benefit by applying LSI in solving day-to-day problem's.
<eureka>
Applying Microprocessor's
New Hardware, Software and Application's
<eureka>
Edited by Laurence Altman
and Stephen Scrupski.
200 pp., illus.
<eureka>
In few short year's, microprocessor's have developed from a promising new technology into the most versatile and powerful tool's electronic's engineer's have ever had. Their application's seem almost limitless. Wherever a programmable, large-scale-integrtaed circuit can be worked into a system, there's a remarkably inexpensive microprocessor for the job. This collection of recent article's from ELECTRONIC'S is designed to smooth your way to mastery of the new microprocessor design method's. It give's you both an overview of the state of the art and a wealth of design idea's, analyse's, and practical application's. Plenty of diagram's, chart's, table's, and photograph's complement the text of this unique reference.
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Microprocessor's
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Edited by Laurence Altman,
Sr. Editor, Electronic's,
216 pp., illus.
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The microprocessor is on the threshold of becoming a billion-dollar industry. This collection of acticle's from Electronic's magazine was published to give you a general overview of the technology, provide design idea's, analyze specific system's, and explain many practical application's. Generously illustrated with diagram's, photograph's, chart's, and table's, the volume is a valuable reference for every engineer and designer interested in the ever-expanding microprocessor field and it's practical application's in system's.
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At your bookstore or write to Suite 26-1, McGraw-Hill
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McGraw-Hill Book Company
Serving the Need for Knowledge
1221 Avenue of the America's
New York, N.Y. 10020
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0-07-019157-3
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Circuit's for Electronic's Engineer's
Electronic's Book Serie's
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McGraw-Hill
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Electronic's Book Serie's
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Also published by Electronic's
-Microprocessor's
-Large scale integration
-Data communication's
-Applying microprocessor's
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Library of Congress Catalog Card No. 76-57777
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Copyright 1977 by McGraw-Hill, Inc. All right's reserved. Printed in the United States of America. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any mean's, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher.
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McGraw-Hill Publication's Co.
1221 Avenue of the America's
New York, New York 10020
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Mc-Graw-Hill
Edited by Samuel Weber
Executive Editor,
Electronic's
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Electronic's Magazine Book Serie's
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Circuit's for Electronic's Engineer's
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Edited by Samuel Weber
Excutive Editor,
Electronic's
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Interested in clever, money-saving, rock-solid electronic's design? Here's a veritable gold mine of idea's from some of the top engineer's in the world. Once this volume is on your desk, you can consult it for instant help and inspiration on any problem that come's along. It may not necessarily give you a direct solution, although it contain's hundred's of good one's. It will give you, though, engineering know-how and cost-cutting and efficiency-boosting idea's that will stimulate your creativity and inspire you to come up with your own tailor-made solution's to the many problem's you encounter.
The book is a time-saving, convenient reference. It feature's 364 practical circuit's that have appeared in the Designer's Casebook section of Electronic's magazine in the past four year's. Because of the overwhelming popular response to the Casebook, the editor has selected the best and most useful design solution's-and presented them in book form for your convenience.
For easy reference, the ciruit's are arranged in 51 categories in alphabetical order. In a few second's you can pinpoint the material you seek. Compare this with the drudgery of looking through the content's page's of back issue's of the magazine.
Tested and proved in action, the circuit's in this volume have been designed by engineer's to solve actual problem's. They are presented here for your use in keeping with the principle that has made Designer's Casebook so popular for many year's. Namely, that there is no point in solving a problem on your own when it may already have been solved by someone else.
Published Casebook idea's are selected for innovation, usefulness, and accuracy. And what you get in this volume is a topnotch selection. For example, it show's you...
-How to construct a video distribution amplifier with all the feature's of $300 commercial model's-for less than $25 in part's.
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-How to use a low-power-drain, high-gain monolithic audio amplifier intended for hearing aid's for a variety of other application's, like tape-recoder preamplifier's and wireless microphone's.
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-An easy way to build a low-power supply in which ripple voltage can be brought virtually to zero.
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-How as many as eight momentary switches can be interlocked electrically even when they are physically separated from one another.
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-A sophisticated intruder alarm circuit that use's the horn of a car and incorporates time delay's-based on two CMOS package's.
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-A novel way of building a dual-voltage regulator for powering op amp's that offer good tracking as well as low ripple.
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Clearly, this volume offer's you much useful help in doing your best with special problem's-and run-of-the-mill work. It give's you a chance to save time and effort by incorporating or adapting idea's from other's who ere faced with similar problem's. After all, innovative engineering has alway's been based on experience and here you get the benefit of the experience of hundred's of your fellow engineer's. The book is permanetly useful as a store-house of design solution's to problem's that you may encounter in the future:
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-How to include an oscillator in the design of a digital clock to keep it going during an interruption of the ac power.
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-How a permanent-magnet dc motor can serve as it's own tachometer for speed control, allowing considerable cost saving's over an expensive motor-tachometer unit.
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-How the design of a weighted-resistor digital-to-analog converter can be simplified by using the gate that supplie's the digital input data as a switch.
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-How an ordinary bipolar transistor can be made to function as a command inverter.
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-How an inexpensive circuit can replace a lengthy software routine at interface between a teletype-writer and almost any microprocessor.
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-How a complementary-transistor out-put stage turn's the 709-type op amp into a far better performer than it is by itself.
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-How the ringing signal on a telephone line can be made to operate a remote ringer without overloading telephone company line's, without interering with company service, and without degrading operation of the line receiving the signal.
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-How a CMOS voltage monitor protect's nickel-cadmium batterie's from discharging completely and suffering permanent damage.
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$19.50
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Preface:
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Since 1964, the Designer's Casebook section of ELECTRONIC'S magazine has been consistently one of the best read section's of the magazine. The reason's for this are not hard to find. first, engineer's are alway's looking for way's to relieve the drudgery that is part of design. If they can save time and effort by incorporating or adapting idea's from other's, they will do so with alacrity. Second, the standard's of ELECTRONICS have alway's been high. Published Casebook idea's are selected for innovation, usefulness, and accuracy.
This volume is a compilation of 364 useful circuit's that have appeared in Desgner's Casebook over the last four year's. They were designed by engineering reader's of ELECTRONIC'S from all over the world and represent approaches to achieving oft-required electronic function's in a variety of way's. There are 51 such function's arranged alphabetically, and the circuit's have been conveniently grouped within them for fast access.
This is not intended as a hobbyist book. While some are relatively simple, most of the circuit's in this volume have been designed by engineer's for the achievement of engineering objective's. They are presented on the same principle that has made Designer's Casebook so popular for so many year's: namely, that re-inventing the wheel is wasteful of engineering time.
To the hundred's of inventive engineer's who have contributed their innovative idea's to Designer's Casebook, and to the thousand's of loyal Electronic's reader's who have responded enthusiatically to them, this book is gratefully dedicated.
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Table of Content's
1. Amplifier's
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1. Single preamplifier/isolator drives if and vlf receiver's.
2. Unity-gain stage is 50-ohm driver.
3. Eliminating offset error in sense amplifier's.
4. Dc restorer for video use offer's ultra-stability.
5. CATV transistor's function as low-distortion vhf preamplifier.
6. High-speed voltage-follower has only 1-nanosecond delay.
7. Getting power and gain out of the 741-type op amp.
8. High-gain triple Darlington has low saturation voltage.
9. Transducer preamplifier conserves quiescent power.
10. Two IC's make low-cost video-distribution amp.
11. No eleven, (11)
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2. Analog-Digital Converter's
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12. Adding automatic zeroing to analog-to-digital converter.
13. Logic system check's out analog-to-digital converter.
14. Height-to-width converter digitized analog sample's.
15. Current source and 555 timer make linear v-to-f converter.
16. Analog-to-digital converter produce's logarithmic output.
17. Comparator's and resistor's form clockless a-d converter.
18. Comparator IC form's 10-bit a-d converter.
19. Coding a-d converter's for sign and magnitude.
20. No twenty, (20).
21. Four-bit a-d converter need's no clock.
22. No twenty-two, (22)
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3. Analog Signal Processing
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23. Two instrument IC's sum six input's.
24. Analog square-root circuit handle's wide input range.
25. No twenty-five, (5).
26. Quasi-matched MOSFET's form filterless squaring circuit.
27. Timer IC pace's analog divider.
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4. Audio Circuit's
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28. Shift register with feedback generate's white noise.
29. No twenty-nine, (29).
30. One-transistor regulator minimize's amplifier distortion.
31. C-MOS sum's up tone's for electronic organ.
32. Handy audio amplifier minimizes power drain.
33. No thirty-three, (33).
34. Audio amplitude leveler minimize's signal distortion.
35. Synchronous noise blanker clean's up audio signal's.
36. Microphone preamp get's power through signal cable.
37. FET's remove transient's from audio squelch circuit.
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5. Automatic Gain Control
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38. Agc threhold detector prodive's fast slewing.
39. Touch tone receiver front end provide's agc and filtering.
40. No Fourty, (40).
41. Varistor voltage divider improve's receiver agc.
42. Photocoupler provide's agc for audio communication's.
43. Broadband p-i-n attenuator has wide input dynamic range.
44. Automatic gain control operate's over two decade's.
45. Automatic gain control quell's amplifier thump.
46. No fourty-six, (46)
47. No fourty-seven, (47)
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6. Automotive circuit's
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48. Precision auto tachometer squelche's point bounce.
49. Sure-fire ignition system safely limit's engine rpm.
50. Ice warning indicator monitor's road condition's.
51. Ic boost's starting energy for solid-state ignition.
52. Electronic switch control's automoblie air conditioner.
53. Tail-biting one-shot keep's car-door light on.
54. IC timer make's economical automoblie voltage regulator.
55. Automobile ignition system is rugged and reliable.
56. Tri-level indicator monitor's automobile's electrical system.
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7. Bridge circuit's
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57. No fifty-seven, (57).
58. Feedback linearized resistance bridge.
59. Winking LED note's null for IC-timer resistance bridge.
60. Circular voltage divider need's fewer resistor's.
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8. Clock circuit's
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61. Micropower comparator's generate 2-phase clock.
62. Multiphase clock produce's nonoverlapping pulse's.
63. Oscillator drive's digital clock when as power fail's.
64. TTL interface circuit synchronize's computer clock.
65. No Sixty-five, (65)
66. Quad NAND gate package yield's two-frequency clock.
67. Generating overlapped clock phases for CCD array.
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9. Comparator's
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68. Phase comparator for servo loop's.
69. TTL gate's speed up pulse-height analysis.
70. One-shot/flip-flop pair's detect frequency band's.
71. Simple logic circuit's compare binary number's.
72. Varying comparator hysteresis without shifting initial trip point.
73. Window comparator need's only one op amp.
74. Single op amp compare's bipolar voltage magnitude's.
75. Logic circuit select's most intense signal.
76. Modified window comparator compensate's for temperature.
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10. Control circuit's
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78. Complementary lighting control use's few part's.
79. Precision triac trigger has wide dynamic range.
80. Sampling regulator control's motor speed.
81. Dc motor control circuit cancel's armature resistance.
82. Stepper drive circuit boost's motor torque.
83. Logic circuit convert's synchronous motor to stepper.
84. Controlling ac load's with C-MOS bilateral switches.
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11. Counter's
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85. Counter invert's period to measure low frequency.
86. No eighty-six, (86).
87. Up/down synchronous counter take's just four MSI package's.
88. C-MOS counting circuit accumlate's 2~`70 pulse's.
89. High-power counter drive's 20-watt load's.
90. Transistor array convert's to fast-switching thyristors.
91. Potentiometer and timer control up/down counter.
92. External gate double's counter speed.
93. Ring counter eliminate's false gating signal's.
94. Low-speed counter use's low-priced calculator chip.
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12. Current source's
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95. No ninty-five, (95).
96. Controlled current source is versatile and precise.
97. Bilateral current source is digitally programable.
98. Controllable current source eliminate's matched resistor's.
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13. Detector's
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99. Simple gating circuit mark's both pulse edge's.
100. Differentiate and count to find frequency error.
101. Frequency discriminator use's one-shot and flip-flop.
102. Schottky diode pair make's an rf detctor stable.
103. Temperature-stable decoder for modulated pulse width's.
104. Video detector store's peak frequency.
105. LED display show's beat frequency.
106. Radiation monitor has linear output.
107. Overrange indicator can enhance frequency meter.
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14. Digital-analog converter's
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108. Logic driving gate's double as d-a converter switches.
109. No-ladder d-a converter work's from one 5-V supply.
110. Digital-to-analog converter is built from low-cost part's.
111. Amplifier add's sign bit to a-d converter output.
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15. Discriminator's
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112. Adjustable discriminator clean's up signal noise.
113. Two-IC pulse discriminator handle's wide range of input's.
114. Voltage discriminator has 0.1-mV resolution.
115. Buffer keep's noise triggering thyristor.
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16. Display circuit's
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116. Scope display of eight signal's help's debug sequential logic.
117. Chopping mode improve's multiple-trace display.
118. Graduated-scale generator calibrate's data display.
119. PROM provide's linear or logarithmic display.
120. Converter for oscilloscope provides four-channel display's.
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17. Encoder's and decoder's
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121. PROM convert's binary code to drive 1 1/2-digit display.
122. Converter changes 7-segment output to decimal or BCD.
123. Hexadecimal encoder debounce's keyboard.
124. Providing a decimal output for a calcuator chip.
125. Gray-code generator avoid's output glitche's.
126. IC trio convert's 7-segment code to decimal.
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18. Filter's
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127. Digital-to-analog converter control's active filter.
128. Active filter has separate band and frequency control's.
129. Wien bridge in notch filter give's 50 db rejection.
130. Voltage-tuned filter varies center frequency linearly.
131. Tunable active filter has switchable response.
132. Two-IC digital filter varies passband easily.
133. Analog filter can be programed digitally.
134. Narrowband digital filter achieve's high Q's.
135. Tunable notch filter suppresses hum.
136. Nonlinear low-pass filter reject's impulse signal's.
137. State-variable filter use's only two op amp's.
138. Three-mode network network is filter or oscillator.
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19. Frequency divider's
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139. TTL decade counter divide's pulse train by any integer.
140. Control one-shot divide's frequency by up to 30.
141. Binary division produce's harmonic frequencie's.
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20. Frequency doubler's.
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142. Frequency doubler's accept's any waveshape.
143. Pulse-frequency doubler require's no adjustment.
144. Switched frequency doubler provide's multiple output's.
145. Frequency-doubler produce's square-wave output.
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21. Frequency synthesizer's
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146. Long/short-period pulse's speed synthesizer setting.
147. Thumbwheel switche's set synthesizer output frequency.
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22. Function generator's
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148. Norton quad amplifier can be low-cost function generator.
149. Counter and decoder/driver produce's staircase voltage.
150. Synchronous ramp generator maintain's output linearity.
151. Triangular-wave generator span's eight decade's.
152. Staircase generator resist's output drift.
153. Generating tone burst's with only two IC timer's.
154. Waveform is synthesized from linear segment's.
155. Link-coupled tank circuit step's up C-MOS drive voltage.
156. Square-wave generator stresse's frequency stability.
157. Digital pulse's synthesize audio sine wave's.
158. Timer IC stabilizes sawtooth generator.
159. Triangular wave's from 555 have adjustable symmetry.
160. Frequency divider plus op amp approximate's sine wave.
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23. Instrument circuit's
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161. Voltage-to-current converter for process-control system's.
162. Data averager for panel meter operate's from meter's clock.
163. Capacitor correct's drift for analog data amplifier.
164. Low-drift IC's form instrument amplifier.
165. Integrated multiplier simplifies wattmeter design.
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24. Integrator's
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166. Two-amplifier integrator extends timing performance.
167. Inverting transistor boost's integrator's time constant.
168. Miller-effect integrator's act as signal sample's.
169. Precision integrator reset's as it sample's.
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25. Invert's
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170. Single bipolar transistor invert's pulse's on command.
171. Digital command invert's signal.
172. Transistor array cut's cost of algebraic inversion.
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26. Limiter's
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173. Broadband cutoff limiter is phase-transparent.
174. Linear signal limiting with feedback multiplier.
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27. Logic circuit's
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175. Unclocked logic element's make's quick decision's.
176. Simplifying sum-correction logic for adding two BCD number's.
177. Circuit add's BCD number's faster with less hardware.
178. Common-gate, common-base circuit's shift voltage level's.
179. IC logic unit's simplifiy binary number conversion.
180. Serial digital multiplier handle's two five-bit number's.
181. Gate threshold difference produce's initializing pulse.
182. Logic probe with LED display check's ECL circuit's.
183. Simple gating circuit monitor's real-time input's.
184. NAND gate's and inverter synchronize control signal.
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28. Memory circuit's
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185. Memory, peripheral's share microprocessor address range.
186. Feedback latch reduce's memory recovery time.
187. Register-addressing system accesse's within nanosecond's.
188. Buffer speed's response time of first-in, first-out memory.
189. Storing computer data with a cassette recorder.
190. One NOR start's shift-register loop.
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29. Microprocessor's
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191. Hardware help's in tracing microprocessor program.
192. Converter let's processor drive teletypewriter.
193. Dual-555-timer circuit restart's microprocessor.
194. Interfacing a teletypwriter with an IC microprocessor.
195. IC's interface keyboard to microprocessor.
196. PROM decoder replace's chip-enabling logic.
197. Circuit step's program for 8080 debugging.
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30. Modulator's and demodulator's
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198. Digital demodulator for phase-shift-keyed data
199. Amplitude modulator is highly linear.
200. Mark/space modulator drive's acoustic coupler.
201. Low-distortion modulator test's hi-fi a-m tuner's.
202. Coherent phase modulation attain's data rate's of 100 MHz.
203. FSK modem interface's cassette and computer.
204. Binary rf phase modulator switch's in 3 nanosecond's.
205. Mark/space demodulator employ's active filter's.
206. Fast-switching modulator reverse's uhf signal phase.
207. Variable-gain amplifier yield's linear rf modulator.
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31. Multiplexer's
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208. Gated MOSFET act's as multiplexing switch.
209. Wired-OR DT.L gate's increased multiplexer input capacity.
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32. Multivibrator's
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210. Output comparator enhance's versatility of one-shot.
211. Multivibrator clock obey's digital command's.
212. Exclusive-OR gate make's bidirectional one-shot.
213. Double-duty multivibrator give's complementary output's.
214. Programable monostable is immune to supply drift.
215. Astable multivibrator need's only one capacitor.
216. IC timer circuit yield's 50% duty cycle.
217. Programable mutivibrator is four-in-one circuit.
218. Monostable's pulse width is programable.
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33. Operational amplifier's
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219. Helping a 709-type op amp to outperform itself.
220. Complementary output stage improve's op-amp response.
221. Controlling op amp gain with one potentiometer.
222. FET-controlled op amp permit's wide dynamic range.
223. Serie's-connected op amp's null offset voltage.
224. Continuing biasing improve's clamping amplifier.
225. More application's for the 741-type op amp.
226. Combined op amp's improve over-all amplifier response.
227. Op amp's multiply RC time constant's.
228. Fet program's op amp for invertible gain.
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34. Optoelectronic circuit's
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229. Negative feedback keep's LED intensity constant.
230. Analog voltage senor control's LED threshold.
231. Matched optical coupler's stabilized isolation circuit.
232. Optocoupler convert's as tone to digital logic level's.
233. Optically coupled ringer doesn't load phone line.
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35. Oscillator's
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234. One-op-amp oscillator keep's sine-wave amplitude constant.
235. Low-distortion oscillator use's state-variable filter.
236. Complementary JFETS form bimode oscillator.
237. Modified function generator yield's linear VCO.
238. ECL tuned oscillator's are voltage-stable.
239. Antilog function generator keep's VCO output linear.
240. Common silicon diodes stabilize oscillator.
241. Stable crystal oscillator work's over wide supply range.
242. Negative-resistance generator has controllable response.
243. ECL gates stretch oscillator range.
244. C-MOS minimize's the size of crstal oscillator's.
245. ECL IC oscillate's from 10 to 50 MHz.
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36. Phase-lock circuit's
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246. Feedback in phase-locked loop linearize's phase demodulator.
247. Phase-locked loop include's lock indicator.
248. Circumventing BCD addition in digital phase-locked loop's.
249.Phased-locked loop adjust's to varying signal condition's.
250. Logic gate's LED indicate's phase lock.
251. Analog multiplier/divider simplifies frequency locking.
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37. Phase Shifter's
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252. Output's of op-amp network's have fixed phase difference.
253. All-digital phase shifter handle's 5-to-1 bandwidth.
254. Frequency doubler and flip-flop make adjustable phase shifter.
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38. Potentiometer Circuit's
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255. Linear pot and op amp provide tapered audio volume control.
256. Serie's resistance improve's potentiometer linearity.
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39. Power supplie's
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257. Voltage doubler's power microprocessor PROMs.
258. Inverting dc-to-dc converter's require no inductor's.
259. IC timer's control dc-dc converter's.
260. Compact dc-dc converter yield's "~+15 V from +5V.
261. Power-supply add-on yield's variable-ratio output.
262. Regualted power supply is adjustable from 0 to 38V.
263. Gate bias circuit for n-MOS run's from 5-V TTL supply.
264. Filament transformer output drop's cost of 400-Hz supply.
265. IC timer and voltage doubler form a dc-dc converter.
266. SCR zero-cross trigger limit's maximum laod power.
267. Handy supply provide's fixed and variable output's.
268. Eliminating current spiking from dc-to-dc converter's.
269. SCR crowbar circuit fire's quickly and surely.
270. C-MOS voltage monitor protect's Ni-Cd batterie's.
271. Inexpensive power supply produce's zero-ripple output.
272. Timer circuit generate's precision power-on reset.
273. Crowbar protection circuit sense's load voltage directly.
274. Pulsed standby battery save's MOS memory data.
275. One lamp can monitor battery voltage.
276. 2.4V battery backup protect's microprocessor memory.
277. Four-ampere power supply cost's just $13 to build.
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40. Programable gain control's
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278. Digital word set's gain of amplifier.
279. D-a converter form's programable gain control.
280. Combination logic cut's part's in digitally controlled amplifier.
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41. Protection circuit's
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281. Phase-sequence detector trip's circuit breaker.
282. Current and power limiter protect's switching transistor.
283. Diodes switch high power to protect sonar receiver.
284. Sensing resistor limit's power-supply current.
285. Two diodes protect logic-level translator.
286. Digital transient suppressor eliminate's logic error's.
287. Voltage regulator protect's pull-up transistor's.
288. Power-failure detector is good for short lapse's.
289. How to prevent spurious tripping of protection circuit's.
290. C-MOS reset circuit ignore's brif outage's.
291. Overvoltage indicator can be added to C-MOS IC tester.
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42. Pulse generator's
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292. Nanosecond-pulse genertor is powered by two D cell's.
293. Generating pulse's with C-MOS flip-flop's.
294. Preset generator produce's desired number of pulse's.
295. Controlling duty cycle and rep rate independently.
296. Pulse generator accuracy is immune to aging.
297. Generator's duty cycle stay's constant under load.
298. Generator independently varies pulse rate and width.
299. Generating nanosecord pulse's with TTL monostables.
300. Single switch regulate's number of pulses.
301. Binary input determine's pulse-generator frequency.
302. Pulse generator produce's programable burst.
303. Bootstrap circuit generates high-voltage pulse train.
304. Delay line in shift register speed's m-sequence generation.
305. One-shot with feedback loop maintain's constant duty cycle.
306. Adjustable pulse generator feature's rate alarm.
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43. Rectifier's
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307. Rectifying wide-range signal's with pecision, variable gain.
308. Comparator and D-MOS switch rectify small signal's linearly.
309. Full-wave rectifier need's only three matched resistor's.
310. Op amp with feedback make's full-wave rectifier.
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44. Security circuit's
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311. Latch circuit's interlock remote switche's electrically.
312.Auto intrusion alarm use's C-MOS circuit's.
313. Twin oscillator's form intruder detector.
314. Electronic combination lock offer's double protection.
315. Digital combination lock is virtually crakproof.
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45. Sensor's
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316. Capactive transducer sense's tension in muscle fiber's.
317. Photodector sense's motion in noisy surrounding's.
318. Two-component light sensor has high voltage output.
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46. Switching circuit's
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319. Doubling breakdown voltage with cascoded transistor's.
320. Solid-state dpdt switch provide's current reversal.
321. Attenuating transient's in analog FET switche's.
322. Transistor gating circuit cut's signal delay to 100 ps.
323. Op amp cancel's video switching transient's.
324. Analog gate and zender diode give 70-dB isolation at 80 MHz.
325. C-MOS touch-switch array control's analog signal's.
326. Switching large ac load's with logic-level signal's.
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47. Temperature control's
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327. Diode plus low-cost op amp make's accurate thermostat.
328. Soldering iron convert's to constant-temperature probe.
329. Using transistor array's for temperature's compensation.
330. Diode pair sense's differential temperature.
331. Direct-reading coverter yield's temperature.
<eureka>
48. Timing circuit's
<eureka>
332. Silent timer warn's of tape run-out.
333. Compensating the 555 timer for capacitance variation's.
334. Discriminator display's first of four response's.
335. Simple logic arrangement identifie's first event.
336. Making music with IC timer's.
337. Extending time delay with an emitter-follower.
338. Getting extra control over output period's of IC timer.
339. Digital clock/calender offer's dual-mode display.
340. Timer pulse width's range from second's to hour's.
<eureka>
49. Trigger's
<eureka>
341. Schmitt trigger prevent's clock train overlap.
342. Integrated timer operate's as variable Schmitt trigger.
<eureka>
50. Voltage reference's
<eureka>
343. Stable voltage reference use's single power supply.
344. Single-supply reference source use's self-regulated zender.
345. Variable voltage source has independently adjustable TC.
<eureka>
51. Voltage regulator's
<eureka>
346. Extra resistor help's regulator share load with transistor.
347. 555 as switching regulator supplie's negative voltage.
348. Regulator for standby supply handle's large load current's.
349. Temperature limiting boost's regulator output current.
350. Boosting IC regulator current with almost no power loss.
351. Adding foldback resistor provide's overload saftely.
352. Current-sharing design boost's regulator output.
353. Economical serie's regulator supplie's up to 10 ampere's.
354. Switching regulator produce's constant-current output.
355. Regulating supply voltage all the way down to zero.
356. Regulator for op amp's practically power's itself.
357. Regulating voltage with just one quad IC and one supply.
358. Regulating high voltage with low-voltage transistor's.
359. Regulating high voltage's with low-voltage zener's.
<eureka>
1. Amplifier's
<eureka>
Single preamplifier/isolator drive's If amd vlf receiver's
by R.W. Burhan's
Ohio University, Athens, Ohio
<eureka>
Unity-gain stage is 50-ohm driver
by William A. Palm
Control Data Corp., Minneapolis, Minn.
<eureka>
Eliminating offset error in sense amplifier's
by Dan Chin
Cambridge Memories, Newton, Mass.
<eureka>
Dc restorer for video use offer's ultra-stability
by Roland J. Turner
AEL Communication's Corp., Lansdale, Pa.
<eureka>
CATV transistor's function as low-distortion vhf preamplifier's
by Paolo Antoniazzi
Societ'a Generale Semiconduttori, Milan, Italy
<eureka>
High-speed voltage-follower has only 1-nanosecond delay
by O.A. Horna
COMSAT Laboratorie's, Clacksburg, Md.
<eureka>
Getting power and gain out of the 741-type op amp
by Pedro P. Garza, Jr.
General Electric Co., Apollo and Ground System's, Houston, Texas
<eureka>
High-gain triple Darlington has low saturation voltage
by Eric Burwen
G&S System's Inc., Burlington, Mass.
<eureka>
Transducer preamplifier conserve's quiescent power
by Robert F. Down's
Ocean & Atomospheric Science Inc., Santa Ana, Calif.
<eureka>
Two IC's make low-cost video-distribution amp
by M. J. Salvati
Sony Corp. of America, Long Island City, N.Y.
<eureka>
2. Analog-digital convert's
<eureka>
Adding automatic zeroing to analog-to-digital converter
by Tom Birchell
Advanced Electronic Control's, Fremont, Calif.
<eureka>
Logic system check's out analog-to-digital converter
by Charles J. Huber
Westinghouse Electric Corp., System's Development Div., Baltimore, Md.
<eureka>
Height-to-width converter digitize's analog sample's
by Roland J. Turner
RCA Corp., Missle and Surface Radar division, Moorestown, N.J.
<eureka>
Current source and 555 timer make linear v-to-f converter
by Andrew McClellan
Case Western Reserve University, Cleaveland, Ohio
<eureka>
Analog-to-digital converter produce's logarithmic output
by Ronald Ferrie
Communication's & Control's Co., Pittsburgh, Pa.
<eureka>
Comparator's and resistor's form clockless a-d converter
by Adrian H. Kitai
Hamilton, Ont., Canada
<eureka>
Comparator IC form's 10-bit a-d converter
by James M. Williams
Massachusetts Institute of Technology, Cambridge, Mass.
<eureka>
Coding a-d convert's for sign and magnitude
by William D. Miller
Hybrid System's Corp., Burlington, Mass.
<eureka>
Four-bit a-d converter need's no clock
by Craig J. Hartley
Baylor College of Medicine, Houston, Texas
<eureka>
3. Analog signal processing
<eureka>
Two instrument IC's sum six input's
by A. Paul Brokaw
Analog Device's Semiconductor, Wilmington, Mass.
<eureka>
Analog square-root circuit handle's wide input range
by W. V. Dromgoole
Christchurch, New Zealand
<eureka>
Quasi-matched MOSFET's form filterless squaring circuit
by W. V. Subbarao
North Dakota State University, Fargo, N.D.
<eureka>
Timer IC pace's analog divider
by Kamil Kraus
Plzen, Czechoslovakia
<eureka>
4. Audio circuit's
<eureka>
Shift register with feedback generate's white noise
by Marc Damashek
Clarke School for the deaf, Northampton, Mass.
<eureka>
One-transistor regulator minimize's amplifier distortion
by Dale Hileman
Sphygmetric's, Inc., Woodland Hills, Calif.
<eureka>
C-MOS sum's up tone's for electronic organ
by Robert Woody
Hercules Inc., Radford, Va.
<eureka>
Handy audio amplifier minimize's power drain
by Fred Riffle
Raytheon Semiconductor Div., Mountain View, Calif.
<eureka>
Audio amplitude leveler minimize's signal distortion.
by Edward E. Pearson
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Synchronous noise blanker clean's up audio signal's
by M. J. Salvati
Sony Corp. of America, Long Island City, N.Y.
<eureka>
Microphone preamp get's power through signal cable
by Don Jones
Harris Semiconductor, Melbourne, Fla.
<eureka>
FET's remove transient's from audio squelch circuit
by Glen Coers
Texas Instrument's Component's Group, Dallas, Texas
<eureka>
5. Automatic gain control
<eureka>
Agc rf threshold detector provide's fast slewing
by Roland J. Turner
American Electronic's Communication's Corp., Lansdale, Pa.
<eureka>
Touch Tone receiver front end provide's agc and filtering
by Jack D. Dennon
Computerphone System, Renton, Wash.
<eureka>
Varistor voltage divider improve's receiver agc
by M. J. Salvati
Sony Corp. of America, Long Island City, N.Y.
<eureka>
Photocoupler provide's agc for audio communication's
by Richard K. Dickey
California Polytechnic State University, San Luis Obispo, Calif.
<eureka>
Broadband p-i-n attenuator has wide input dynamic range
by Roland J. Turner
American Electronic Lab's, Colmar, Pa.
<eureka>
Automatic gain control operate's over two decade's
by Carl Marco
Martin Marietta Corp., Orlando, Fla.
<eureka>
Automatic gain control quell's amplifier thump
by Paul Brokaw
Analog Device's Inc., Semiconductor Division, Wilmington, Mass.
<eureka>
6. Automotive circuit's
<eureka>
Precision auto tachometer squelche's point bounce
by James B. Young
Canadian General Electric Ltd. Peterborough, Ont., Canada
<eureka>
Sure-fire ignition system safely limit's engine rpm
by L. G. Smeins
Ball Brother's Research Corp., Boulder, Colo.
<eureka>
Ice warning indicator monitor's road condition's
by Steven E. Summer
Hauppauge, N.Y.
<eureka>
IC boost's starting energy for solid-state ignition
by Charle's R. Carter
McMaster University, Hamilton, Ont., Canada
<eureka>
Electronic switch control's automobile air conditioner
by L. G. Smeins
Ball Brother's Research Corp., Boulder, Colo.
<eureka>
Tail-biting one-shot keep's car-door light on
by B. D. Redmile
Salisbury, Rhodesia
<eureka>
IC timer make's economical automobile voltage regulator
by T. J. Fusar
Powell-Mac Electronic's, Madison, Wis.
<eureka>
Automobile ignition system is rugged and reliable
by J. P. Thomas
Litton Industrie's, Litton System's (Canada) Ltd., Rexdale, Ont., Canada
<eureka>
Tri-level indicator monitor's automobile's electrical system
by S. K. Wong
Torrance, California
<eureka>
7. Bridge circuit's
<eureka>
Feedback linearize's resistance bridge
by Robert D. Guyton
Mississippi State University, State College, Miss.
<eureka>
Winking LED note's null for IC-timer resistance bridge
by James A. Blackburn
Wilfrid Laurier University, Waterloo, Ont., Canada
<eureka>
Circular voltage divider need's fewer resistor's
by Dale Hileman
Physiometric's Inc., Malibu, Calif.
<eureka>
8. Clock circuit's
<eureka>
Micropower comparator's generate 2-phase clock
by Norman G. Wheelock
Siliconix Inc., Santa Clara, Calif.
<eureka>
Multiphase clock produce's nonoverlapping pulse's
by Glen Coers
Texas Instrument's, Component's Group, Dallas, Texas
<eureka>
Oscillator drive's digital clock when ac power fail's
by Robert C. Moore
Applied Physics Laboratory, Johns Hopkins University, Silver Spring, Md.
<eureka>
TTL interface circuit synchronize's computer clock
by Jim Crapuchette's
Stanford University Medical Center, Stanford, Calif.
<eureka>
Quad NAND gate package yield's two-frequency clock
by Howard L. Nurse
Applied Technology Division, Itek Corp., Palo Alto, Calif.
<eureka>
Generating overlapped clock phases for CCD array
by Hans-Jorg Pfleiderer and K. Knauer,
Siemen's AG, Munich, Germany
<eureka>
9. Comparator's
<eureka>
Phase comparator for servo loop's
by Francis E. Adams
San Bernadino Microwave Society, Corona, Calif.
<eureka>
TTL gates speed up
pulse-height analysis
by Joseph Laughter
University of Tennessee Medical Unit's, Memphis, Tenn.
<eureka>
One-shot/flip-flop pair's detect frequency band's
by Edward E. Pearson
Opelousas, La.
<eureka>
Simple logic circuit's compare binary number's
by Edward J. Murray
Inter-Computer Electronic's Inc., Lansdale, Pa.
<eureka>
Varying comparator hystersis without shifting initial trip point
by Jerald Graeme
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Window comparator need's only one op amp
by Jerald Gr'aeme
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Single op amp compare's bipolar voltage magnitude's
by F. N. Trofimenkoff and R. E. Smallwood
University of Calgary, Alta., Canada
<eureka>
Logic circuit select's most intense signal
by P. V. H. M. L. Narasimham
Indian Institute of Technology, Kanpur, India
<eureka>
Modified window comparator compensate's for temperature
by C. E. Musser
General Electric Co., Binghamton, N. Y.
<eureka>
10. Control circuit's
<eureka>
Complementary lighting control use's few part's
by Mark E. Anglin
Novar Electronic's Corp., Barberton, Ohio
<eureka>
Precision triac trigger has wide dynamic range
by Ronald Sans
Tampa, Fla.
<eureka>
Sampling regulator control's motor speed
by Philip Dempster
Este Instrument's Inc., Richmond, Calif.
<eureka>
Dc motor control circuit cancel's armature resistance
by Leland N. Van Allen
Idea's Inc., Beltsville, Md.
<eureka>
Stepper drive circuit boost's motor torque
by E. Wolf
Redactron Corp., Hauppauge, N.Y.
<eureka>
Logic circuit convert's synchronous motor to stepper
by Michael D. Doering
Food and Drug Administration, Bureau of Radiological Health, Rockville, Md.
<eureka>
Controlling ac load's with C-MOS bilateral switche's
by Arthur Johnson
Darlington, Md.
<eureka>
11. Counter's
<eureka>
Counter invert's period to measure low frequency
by Matthew L. Fichtenbaum
General Radio Co., Concord, Mass.
<eureka>
Up/down synchronous counter take's just four MSI package's
by Richard J. Bouchard
Sander's Associate's Inc., Nashua, N.H.
<eureka>
C-MOS counting circuit accumulate's 270 pulse's
by Robert M. Owen's and Kenneth J. Hintz
Naval Weapon's Laboratory, Dahigren, Va.
<eureka>
High-power counter drive's 20-watt load's
by Christopher Strangio
Villanova University, Villanova, Pa.
<eureka>
Transistor array convert's to fast-switching thyristor's
by H. S. Kothari
Central Electronic's Engineering Research Institute, Pilani, India
<eureka>
Potentiometer and timer control up/down counter
by Franck Gergek
Weston, Ont., Canada
<eureka>
External gate double's counter speed
by Jeffrey Mattox
United States Air Force, L. G. Hanscom Field, Bedford, Mass.
<eureka>
Ring counter eliminate's false gating signal's
by Glen Hamilton
Dickson, Tenn.
<eureka>
Low-speed counter use's low-priced calculator chip
by Dennis J. Flora
Steven's Institute of Technology, Hoboken, N.J.
<eureka>
12. Current source's
<eureka>
Controlled current source is versatile and precise
by Jerald Graeme
Burr-Brown Research Corp., Tucson Ariz.
<eureka>
Bilateral current source is digitally programable
by Andrew Olesin
Soltek, Montrose, Colo.
<eureka>
Controllable current source eliminate's matched resistor's
by James A. Stanko
State University of New York, Stony Brook, N.Y.
<eureka>
13. Detector's
<eureka>
Simple gating circuit mark's both pulse edge's
by Ralph Tenny
Texas Instrument's, Central Research Laboratorie's, Dallas, Texas
<eureka>
Differentiate and count to find frequency error
by Robert C. Rogers
Texas A&M University, College Station, Texas
<eureka>
Frequency discriminator use's one-shot and flip-flop
by Peter Alfke
Fairchild Semiconductor, Mountain View, Calif.
<eureka>
Schottky diode pair make's an rf detector stable
by Roland J. Turner
AEL Communication's Corp., Lansdale, Pa.
<eureka>
Temperature-stable decoder for modulated pulse width's
by H. R. Beurrier
Bell Telephone Laboratorie's, Murray Hill, N.J.
<eureka>
Video detector store's peak for minute's
by Steven Hayes
Altadena, Calif.
<eureka>
LED display show's beat frequency
by Sergio Franco
Oberlin College, Oberlin, Ohio
<eureka>
Radiation monitor has linear ouput
by Paul Prazak, Burr-Brown Research Corp., Tucson Ariz.,
and Lt. William B. Scott, Edward's AFB, Calif.
<eureka>
Overrange indicator can enhance frequency meter
by F. E. Hinkle
The Applied Research Laboratorie's, University of Texas, Austin, Texas
<eureka>
14. Digital-analog converter's
<eureka>
Logic driving gate's double
as d-a converter switche's
by Amos Wilnai
Monolithic Memorie's Inc., Sunnyvale, Calif.
<eureka>
No-ladder d-a converter work's from one 5-V supply
by E. Insam
Chelsea College, University of London, London, England
<eureka>
Digital-to-analog converter is built from low-cost part's
by Phillip J. Storey
Jands Pty. Ltd., Marrickville, N.S.W., Australia
<eureka>
Amplifier add's sign bit to d-a converter output
by Jerald Graeme
Burr-Brown Research Corp., Tucson, Ariz
<eureka>
15. Discriminator's
<eureka>
Adjustable discriminator clean's up signal noise
by Dennis D. Barber
University of Houston, Houston, Texas
<eureka>
Two-IC pulse discrimintor handle's wide range of input's
by Steven E. Holzman
ESL Inc., Sunnyvale, Calif.
<eureka>
Voltage discriminator has 0.1-mV resolution
by Ryszard Bayer
Institute of Nuclear Research, Swierk, Poland
<eureka>
Buffer keep's noise from triggering thyristor
by L. R. Rice
Westinghouse Semiconductor Division, Youngwood, Pa.*
<eureka>
16. Display circuit's
<eureka>
Scope display of eight signal's help's debug sequential logic
by Matthew L. Fichtenbaum
General Radio Co., Concord, Mass.
<eureka>
Chopping mode improve's multiple-trace display
by C. S. Pepper
IRT Corp., San Diego, Calif.
<eureka>
Graduated-scale generator calibrate's data display
by Ken E. Anderson
IBME, University of Toronto, Canada
<eureka>
PROM provide's linear or logarithmic display
by John Brady
Applied Research Laboratorie's University of Texas, Austin, Texas
<eureka>
Converter for oscilloscope provide's four-channel display's
by Grady M. Wood
Harris-Intertype Corp., Melbourne, Fla.
<eureka>
17. Encoder's and decoder's
<eureka>
PROM convert's binary code to drive 1 1/2-digit display
by V. R. Godbole
North Electric Co., Galion, Ohio
<eureka>
Converter change's 7-segment output to decimal of BCD
by Prentice L. Orswell
National Oceanic and Atmospheric Administration, Boulder, Colo.
<eureka>
Hexadecimal encoder debounce's keyboard
by Ralph Tenny
Texas Instrument's Inc., Dallas, Texas
<eureka>
Providing a decimal output for a calculator chip
by Jack Lambert
Lambert Associate's, Lexington, Mass.
<eureka>
Gray-code generator avoid's output glitche's
by Carl Moser
Western Electric Co., Winston-Salem, N.C.
<eureka>
18. Filter's
<eureka>
Digital-to-analog converter control's active filter
by Jerry Whitmore,
Analog Device's, Santa Clara, Calif.
<eureka>
Active filter has separate band and frequency control's
by John Jenkins
Montgomery, Ala.
<eureka>
Wien bridge in notch filter give's 60 dB rejection
by Donald DeKold
University of Florida, Gainesville, Fla.
<eureka>
Voltage-tuned filter varie's center frequency linearly
by Vassilios J. Georgiou
University of Massachusetts, Amherst, Mass.
<eureka>
Tunable active filter has switchable response
by Philbrook Cushing
La Jolla, Calif.
<eureka>
Two-IC digital filter varie's passband easily
by Andrew M. Volk
University of Wisconsin, Madison, Wis.
<eureka>
Analog filter can be programed digitally
by Leonard M. Smithline
Lansing Research Corp., Ithaca, N.Y.
<eureka>
Narrowband digital filter achieve's high Q's
by Thomas A. Visel
University of Illinois, Urbana, III.
<eureka>
Tunable notch filter suppresse's hum
by Peter Lefferson
Milton Roy Co., St. Petersburg, Fla.
<eureka>
Nonlinear low-pass filter reject's impulse signal's
by Barrie Gilbert
Analog Device's Semiconductor, Wilmington, Mass.
<eureka>
State-variable filter use's only two op amp's
by Charles Croskey
Pennsylvania State University, University Park, Pa.
<eureka>
Three-mode network is filter or oscillator
by Michel Baril
University of Quebec, Montreal, Quebec, Canada
<eureka>
19. Frequency divider's
<eureka>
TTL decade counter divide's pulse train by any integer
by T. Durgavich and D. Abram's
Abrams Associate's, Arlington, Mass.
<eureka>
Control one-shot divide's frequency by up to 30
by Jerome Snaper
Leach Corp., Control's Div., Azusa, Calif.
<eureka>
Binary division produce's harmonic frequencie's
by Donald DeKold
Santa Fe Junior College, Gainesville, Fla.
<eureka>
20. Frequency doubler's
<eureka>
Frequency doubler accept's any waveshape
by Donald DeKold
Santa Fe Junior College, Gainesville, Fla.
<eureka>
Pulse-frequency doubler require's no adjustment
by Thomas McGahee
Don Bos'co Technical High School, Boston, Mass.
<eureka>
Switched frequency doubler provide's multiple output's
by Michael F. Black
Texas Instrument's, System's Analysis Section, Dallas, Texas
<eureka>
Frequency-doubler produce's square-wave output
by Robert L. Taylor
I&F Electronic's, Nashville, Tenn.
<eureka>
21. Frequency synthesizer's
<eureka>
Long/short-period pulse's speed synthesizer setting
by Gregory W. M. Yuen
University of Technology, Loughborough, Leicestershire, England
<eureka>
Thumbwheel switche's set synthesizer output frequency
by Jerrold L. Foote
University of Utah College of Medicine, Salt Lake City, Utah
<eureka>
22. Function generator's
<eureka>
Norton quad amplifier can be a low-cost function generator
by P. Vlcek
Orbit Control's Ltd.
Cheltenham, Gloucester, England
<eureka>
Counter and decoder/driver
produce's staircase voltage
by Donald F. Dekold
Santa Fe Community College, Gainesville, Fla.
<eureka>
Synchronous ramp generator maintain's output linearity
by D. M. Brockman
Boeing Co., Seattle, Wash.
<eureka>
Triangular-wave generator span's eight decade's
by William S. Shaw
University of Texas, Applied Research Laboratorie's, Austin, Texas
<eureka>
Staircase generator resist's output drift
by Maxwell Strange
NASA, Goddard Space Flight Center, Greenbelt, Md.
<eureka>
Generating tone burst's with only two IC timer's
by L. W. Herring
LWH Associate's, Dallas, Texas
<eureka>
Waveform is synthesized from linear segment's
by E. D. Urbanek
Bell Telephone Laboratorie's, Murray Hill, N.J.
<eureka>
Link-coupled tank circuit step's up C-MOS drive voltage
by R. W. Mouritsen
National Research Council of Canada, Ottawa, Canada
<eureka>
Square-wave generator stresse's frequency stability
by S. F. Aldridge
IBM Corp., General Product's Div., San Jose, Calif.
<eureka>
Digital pulse's synthesize audio sine wave's
by Patrick L. McGuire
General Dynamic's, Pomana, Calif.
<eureka>
Timer IC stabilize's sawtooth generator
by Frank N. Cicchiello
Geometric Data Corp., Wayne, Pa.
<eureka>
Triangular wave's from 555 have adjustable symmetry
by Devlin M. Gualtieri
University of Pittsburgh, Pittsburgh, Pa.
<eureka>
Frequency divider plus op amp approximate's sine wave
by John Taylor,
NOAA, Boulder, Colo.
<eureka>
23. Instrument circuit's
<eureka>
Voltage-to-current converter for process-control system's
by Harry L. Trietley, Jr.
Taylor Instrument Process Control Div., Sybron Corp., Rochester, N.Y.
<eureka>
Data averager for panel meter operate's from meter's clock
by George Mitchell and Richard D. Spencer
University of Illinois, Urbana, III.
<eureka>
Capacitor correct's drift for analog data amplifier
by Charles Walton*
IBM Corp., System's Development Division, San Jose, Calif.
<eureka>
Low-drift IC's form instrumentation amplifier
by K. C. Seino
Fermi National Accelerator Laboratory, Batavia, III.
<eureka>
Integrated multiplier simplifie's wattmeter design
by Donald DeKold
Santa Fe Community College, Gainesville, Fla.
<eureka>
24. Integrator's
<eureka>
Two-amplifier integrator extend's timing performance
by Nabil R. Bechai
Leigh Control's Ltd., Ottawa, Ont., Canada
<eureka>
Inverting transistor boost's integrator's time constant
by Roland J. Turner
General Electric Space Division, King of Prussia, Pa.
<eureka>
Miller-effect integrator's act as signal separator
by Dale Hileman
Sphygmetric's Inc., Woodland Hills, Calif.
<eureka>
Precision integrator reset's as it sample's
by Dennis J. Knowlton
University of Wyoming, Laramie, Wyo.
<eureka>
25. Inverter's
<eureka>
Single bipolar transistor invert's pulse's on command
by Dale Hileman
Sphygmetric's Inc., Woodland Hills, Calif.
<eureka>
Digital command invert's signal
by Craig J. Hartley
Baylor College of Medicine, Houston, Texas
<eureka>
Transistor array cut's cost of algebraic inversion
by Pavel Ghelfan
M.G. Electronic's Ltd., Rehovot, Israel
<eureka>
26. Limiter's
<eureka>
Broadband cutoff limiter is phase-transparent
by Roland J. Turner
RCA Missile & Surface Radar Division, Moorestown, N.J.
<eureka>
Linear signal limiting with feedback multiplier
by R. J. Karwoski
Raytheon Co., Equipment division, Sudbury, Mass.
<eureka>
27. Logic circuit's
<eureka>
Unclocked logic element make's quick decision's
by Leslie K. Torok
University of Toronto, Toronto, Ont., Canada
<eureka>
Simplifying sum-correction logic for adding two BCD number's
by Robert D. Guyton
Mississippi State University, Mississippi State, Miss.
<eureka>
Circuit add's BCD number's faster with less harware
by Dharma P. Agrawal
Federal Polytechnic Institute of Lausanne, Switzerland
<eureka>
Common-gate, common-base circuit's shift voltage level's
by Peter J. Bunge
Atomic Energy of Canada Ltd., Chalk River, Ontario
<eureka>
IC logic unit's simplify binary number conversion
Binary number conversion
by Harvey F. Hoffman
Norden Division, United Aircraft Corp., Norwalk, Conn.
<eureka>
Serial digital multiplier handle's two five-bit number's
by T. K. Tawfig and H. L. Hvim's
Allerod, Demark
<eureka>
Gate threshold difference produce's initializing pulse
by Jose Souto Martins
GTE Automatic Electric Inc., Northlake, III.
<eureka>
Logic probe with LED display check's ECL circuit's
by William Wilke
University of Wisconsin, Madison, Wis.
<eureka>
Simple gating circuit monitor's real-time input's
by David F. Hood
Bell-Northern Research, Ottawa, Canada
<eureka>
NAND gate's and inverter synchronize control signal
by Robert L. White
Applied Research Laboratorie's, University of Texas, Austin, Texas
<eureka>
28. Memory circuit's
<eureka>
Memory, peripheral's share microprocessor address range.
by James A. Kuzdrall
Candia, N.H.
<eureka>
Feedback latch reduce's memory recovery time
by Joseph McDowell and William Moss
Monolithic Memorie's Inc., Sunnyvale, Calif.
<eureka>
Register-addressing system accesse's within nanosecond's
by C.A.N. Conde, C.A. Correia, and A.D. Figueiredo
University of Coimbra, Portugal
<eureka>
Buffer speed's response time of first-in, first-out memory
by Jim Edrington
Applied Research Laboratorie's, University of Texas, Austin, Texas
<eureka>
Storing computer data with a cassette recorder
by Richard Eckhardt
Massachusett's Institute of Technology, Cambridge, Mass.
<eureka>
One NOR gate start's shift-register loop
by Jean-Pierre Dujardin
Ohio State University, Columbus, Ohio
<eureka>
29. Mircroprocessor's
<eureka>
Hardware help's in tracing microprocessor program
by Jeffrey L. Zurkow
Hampshire College, Amherst, Mass.
<eureka>
Coverter let's processor drive teletypewriter
by Richard C. Pasco
Stanford University, Standford, Calif.
<eureka>
Dual-555-timer circuit restart's microprocessor
by James R. Bainter
Motorla Semiconductor Product's, Phoenix, Ariz.
<eureka>
Interfacing a teletypewriter with an IC microprocessor
by Steven K. Roberts
Cybertronic System's, Louisville, Ky.
<eureka>
IC's interface keyboard to microprocessor
by Donald P. Martin and Kerry S. Berland
Martin Research Ltd. Chicago, III.
<eureka>
PROM decoder replace's chip-enabling logic
by Roy Blacksher
Signetic's, Sunnyvale, Calif.
<eureka>
Circuit's step's program for 8080 debugging
by John F. Wakerly
Stanford University, Stanford, Calif.
<eureka>
30. Modulator's and demodulator's
<eureka>
Digital demodulator for phase-shift-keyed data
by C. A. Herbst
Technology Resource's, Paris
<eureka>
Amplitude modulator is highly linear
by Donald DeKold
Santa Fe Junior College, Gainesville, Fla.
<eureka>
Mark/space modulator drive's acoustic coupler
by Jack D. Dennon
Computerphone System's, Renton, Wash.
<eureka>
Low-distortion modulator test's hi-fi a-m tuner's
by M. J. Salvati
Sony Corp. of America, Long Island City, N.Y.
<eureka>
Coherent phase modulation attain's data rate's of 100 MHz
by Roland J. Turner
General Electric Co., Space Division, King of Prussia, Pa.
<eureka>
FSK modem interface's cassette and computer
by John I. Compton
Wenner-Gren Laboratory, University of Kentucky, Lexington, Ky.
<eureka>
Binary rf phase modulator switche's in 3 nanosecond's
by Roland J. Turner
AEL Communication's Corp., Lansdale, Pa.
<eureka>
Mark/space demodulator employ's active filter's
by Michael J. Gordon Jr.
Psynexus System's Wilmette, III.
<eureka>
Fast-switching modulator reverse's uhf signal phase
by R. N. Assaly
Massachusetts Institute of Technology, Lexington, Mass.
<eureka>
Variable-gain amplifier yield's linear rf modulator.
by Michael F. Black
Equipment Group, Texas Instrument's, Dallas, Texas
<eureka>
31. Multiplexer's
<eureka>
Gated MOSFET act's as multiplexing switch
by Glen Coers
Texas Instrument's, Dallas, Texas
<eureka>
Wired-OR DTL gate's increase multiplexer input capacity
by Eric G. Breeze
Fairchild Semiconductor, Mountain View, Calif.
<eureka>
32. Multivibrator's
<eureka>
Output comparator enhance's versatility of one-shot
by Harvey J. Scherr*
Westinghouse Corp., System's Development Div,. Baltimore, Md.
<eureka>
Multivibrator clock obey's digital command's
by Patrick L. McGuire
General Dynamic's, Electrodynamic division, Pomana, Calif.
<eureka>
Exclusive-OR gate make's bidirectional one-shot
by Tim O'Toole
Tektronix, Inc., Beaverton, Ore.
<eureka>
Double-duty multivibrator give's complementary output's
by Edward Beach
National Radio Institute, McGraw-Hill Inc., Washington, D.C.
<eureka>
Programable monostable is immune to supply drift
by Mahendra J. Shah
University of Wisconsin, Madison, Wis.
<eureka>
Astable multivibrator need's only one capacitor
by Glen Coers
Texas Instrument's, Dallas, Texas
<eureka>
IC timer circuit yield's 50% duty cycle
by Frank N. Cicchiello
Geometric Data Corp., Wayne, Pa.
<eureka>
Programable multivibrator is four-in-one circuit
by Edward Beach
McGraw-Hill Continuing Education's Co., Washington, D. C.
<eureka>
Monostable's pulse width is programable
by C. F. Reeve's
Del Mar, Calif.
<eureka>
33. Operational amplifier's
<eureka>
Helping a 709-type op amp to outperform itself
by Jiri'Dost'al
Research Institute for Mathematical Machine's, Prague, Czechoslov'akia
<eureka>
Complementary output stage improve's op-amp response
by Robert Gagnon and Richard Karwoski
Raytheon Co., Equipment division, Sudbury, Mass.
<eureka>
Controlling op amp gain with one potentiometer
by T. Frank Ritter
San Antonio, Texas
<eureka>
FET-controlled op amp permit's wide dynamic range
by Henry E. Santana
Hewlett-Packard Loveland Instrument Division, Loveland, Colo.
<eureka>
Serie's-connected op amp's null offset voltage
by Lawrence Choice
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Continuing biasing improve's clamping amplifier
by Jerry Graeme
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
More application's for the 741-type op amp
by Edward Beach
McGraw-Hill Continuing Education Center, Washington, D.C.
<eureka>
Combined op amp's improve over-all amplifier response
by William Ott
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Op amp's multiply RC time constant's
by Quentin Bristow
Geological Survey of Canada, Ottawa, Ont., Canada
<eureka>
FET program's op amp for invertible gain
by Ken A. Dill and Mark Troll
Revelle College, University of California, La Jolla, Calif.
<eureka>
34. Optoelectronic circuit's
<eureka>
Negative feedback keep's LED intensity constant
by Ken Erickson
Interstate Electronic's Corp., Anaheim, Calif.
<eureka>
Analog voltage sensor control's LED thereshold
by Thomas Mazur
Motorola Semiconductor Product's, Phoenix, Ariz.
<eureka>
Matched optical coupler's stabilize isolation circuit
by Arnold Nielsen
Ford Motor Co., Dearborn, Mich.
<eureka>
Optocoupler convert's ac tone to digital logic level's
by Louis E. Frenzel
Heath Co., Benton Harbor, Mich.
<eureka>
Optically coupled ringer doesn't load phone line
by William D. Kraengel Jr.
Valley Stream, N.Y.
<eureka>
35. Oscillator's
<eureka>
One-op-amp oscillator keep's sine-wave amplitude constant
by Dale Hileman
Sphygmetric's Inc. Woodland Hills, Calif.
<eureka>
Low-distortion oscillator use's state-variable filter
by Walter G. Jung
Forest Hill, Md.
<eureka>
Complementary JFETS form bimode oscillator
by Gregory Hodowanec
Newark, N.J.
<eureka>
Modified function generator yield's linear VCO
by Antonio Tagliavini
Bologna, Italy
<eureka>
ECL tuned oscillator's are voltage-stable
by Tom Hornak
Hewlett-Packard Co., Palo Alto, Calif.
<eureka>
Antilog function generator keep's VCO output linear
by J. A. Connelly and C. D. Thompson
Georgia Institute of Technology, Atlanta, Ga.
<eureka>
Common silicon diode's stabilize oscillator
by Dale Hileman
Sphygmetric's Inc., Woodland Hills, Calif.
<eureka>
Stable crystal oscillator work's over wide supply range
by Terence King
Oroco Communication's Inc., Middletown, N.Y.
<eureka>
Negative-resistance generator has controllable response
by Samuel E. Bigbie
IBM General System's Division, Boca Raton, Fla.
<eureka>
ECL IC oscillate's from 10 to 50 MHz
by William A. Palm
Control Data Corp., Minneapolis, Minn.
<eureka>
C-MOS minimize's the size of crystal oscillator's
by S. S. Chuang
Statek Corp., Orange, Calif.
<eureka>
ECL gate's stretch oscillator range
by William Blood
Motorola Semiconductor Product's Inc., Phoenix, Ariz.
<eureka>
36. Phase-lock circuit's
<eureka>
Feedback in phase-locked loop linearize's phase demodulator
by Ron Rippy
Rf Technology Branch, Goddard Space Flight Center, Greenbelt, Md.
<eureka>
Phase-locked loop adjust's to varying signal condition's
by Charles A. Watson
E-System's Inc., Greenville, Texas
<eureka>
Circumventing BCD addition in digital phase-locked loop's
by Larry Martin
Hewlett-Packard Co., Palo Alto, Calif.
<eureka>
Phase-locked loop include's lock indicator
by J. A. Connelly and G. E. Prescott
Georgia Institute of Technology, Atlanta, Ga.
<eureka>
Logic gate's and LED indicate phase lock
by R. P. Leck
Bell Laboratorie's, Crawford Hill, Holmdel, N.J.
<eureka>
Analog multiplier/divider simplifie's frequency locking
by Moise Hamaoui
Fairchild Semiconductor, Mountain View, Calif.
<eureka>
37. Phase shifter's
<eureka>
Output's of op-amp network's have fixed phase difference
by Richard K. Dickey
California Polytechnic State University, San Luis Obispo, Calif.
<eureka>
All-digital phase shifter handle's 5-to-1 bandwidth
by Aleardo Salina
Siai Marchetti, Vergiate, Italy
<eureka>
Frequency doubler and flip-flop make adjustable phase shifter
by Vladimir Brunstein
Nova Electric Mfg. Co., Nutley, N.J.
<eureka>
38. Potentiometer circuit's
<eureka>
Linear pot and op amp provide tapered audio volume control
by Robert C. Moore
Applied Physics Laboratory, Johns Hopkins University, Silver Spring, Md.
<eureka>
Serie's resistance improve's potentiometer linearity
by Harry H. Schwartz
Electrodesign Ltd., Ville Lasalle, Quebec, Canada
<eureka>
39. Power supplie's
<eureka>
Voltage doubler's power microprocessor PROM's
by Andrew Longacre Jr.
University of New Orlean's, New Orlean's, La.
<eureka>
Inverting dc-to-dc converter's require no inductor's
by Craig Scott and R. M. Stitt
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
IC timer's control dc-dc convert's
by P. R. K. Chetty
Indian Scientific Satellite Project, Bangalore, India
<eureka>
Compact dc-dc converter yield's ~`_15 V from +5 V
by Thomas Durgavich
Massachusettes Institute of Technology, Cambridge, Mass.
<eureka>
Power-supply add-on yield's variable-ratio output
by Ying-Lau-Lee
Cambridge, Mass.
<eureka>
Regulated power supply is adjustable from 0 to 38 V
by Frank P. Miles
Rochester, N.Y.
<eureka>
Gate bias circuit for n-MOS run's from 5-V TTL supply
by Bud Broeker
Motorola Semiconductor Product's, Phoenix, Ariz.
<eureka>
Filament transformer output drop's cost of 400-Hz supply
by Glen Coers
Texas Instrument's, Component's Group, Dallas, Texas
<eureka>
IC timer and voltage doubler form a dc-dc converter
by Todd Gartner
Motorola Inc., Automotive Research & Development, Franklin Park, III.
<eureka>
SCR zero-cross trigger limit's maximum load power
by Richard Eckhardt
Electronic's Consulting & Development, Cambridge, Mass.
<eureka>
Handy supply provide's fixed and variable output's
By John Predescu
Buchler Instrument's Division, Nuclear-Chicago Corp., Fort Lee, N.J.
<eureka>
Eliminating current spiking from dc-to-dc converter's
by Carlo Venditti
Charles Stark Draper Laboratory, MIT, Cambridge, Mass.
<eureka>
SCR crowbar circuit fire's quickly and surely
by Steve Summer
Hauppauge, N.Y.
<eureka>
C-MOS voltage monitor protect's Ni-Cd batterie's
by William Wilke
University of Wisconsin, Madison, Wis.
<eureka>
Inexpensive power supply produce's zero-ripple output
by Rod Spencer
Chlorescope System's, Linden, N.J.
<eureka>
Timer circuit generate's precision power-on reset
by Jim Felps
Texas Instrument's, Austin, Texas
<eureka>
Crowbar protection circuit sense's load voltage directly
by Thomas E. Skopal
Acopian Corp., Easton, Pa.
<eureka>
Pulsed standby battery save's MOS memory data
by K. C. Herrick
Fisher Berkeley Corp., Emeryville, Calif.
<eureka>
One lamp can monitor battery voltage
by N. D. Thai
Huntec Ltd., Toronto, Ont., Canada
<eureka>
2.4-V battery backup protect's microprocessor memory
by Raymond N. Bennett
Advanced Technology Laboratorie's Inc., Bellevue, Wash.
<eureka>
Four-ampere power supply cost's just $13 to build
by Joseph Ennis
Automation Industrie's, Inc., Vitro Laboratorie's Division, Silver Spring, Md.
<eureka>
40. Programmable gain control's
<eureka>
Digital word set's gain of amplifier
by Craig J. Hartley
Baylor College of Medicine, Houston, Texas
<eureka>
D-a converter form's programable gain control
by Jim Edrington
The Applied Research Laboratorie's, University of Texas, Austin, Texas
<eureka>
Combination logic cut's part's in digitally controlled amplifier
by Reinhard Metz
Bell Laboratorie's, Naperville, III.
<eureka>
41. Protection circuit's
<eureka>
Phase-sequence detector trip's circuit breaker
by Terry Malarkey
Motorola Semiconductor Product's Inc., Phoenix, Ariz.
<eureka>
Current and power limiter protect's switching transistor
by R. M. Stitt
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Diode's switch high power to protect sonar receiver
by F. E. Hinkle
Applied Research Laboratorie's, The University of Texas, Austin, Texas
<eureka>
Sensing resistor limit's power-supply current
by Theo W. Smit
Euratom, Ispro, Italy
<eureka>
Two diode's protect logic-level translator
by P. R. K. Chetty
Indian Scientific Satellite Project, Bangalore, India
<eureka>
Digital transient suppressor eliminate's logic error's
by Christopher Strangio
Villanova University, Villanova, Pa.
<eureka>
Voltage regulator protect's logic pull-up transistor's
by Stephen F. Moore
Resdel Engineering Corp., Arcadia, Calif.
<eureka>
Power-failure detector is good for short lapse's
by K. C. Seino,
Fermi National Accelerator Laboratory, Batavia, III.
<eureka>
How to prevent spurious tripping of protection circuit's
by Thomas E. Skopal
Acopian Corp., Easton, Pa.
<eureka>
C-MOS reset circuit ignore's brief outage's
by Roger F. Atkinson
ITEC Inc., Huntsville, Ala.
<eureka>
Overvoltage indicator can be added to C-MOS IC tester
by Rajni B. Shah
Rohde & Schwarz, Fairfield, N.J.
<eureka>
42. Pulse generator's
<eureka>
Nanosecond-pulse generator is powered by two D cell's
by M. J. Salvati
Sony Corp. of America, Long Island City, N.Y.
<eureka>
Generating pulse's with C-MOS flip-flop's
by F. J. Marlowe and J. P. Hasili
RCA Laboratorie's, Princeton, N.J.
<eureka>
Preset generator produce's desired number of pulse's
by Glen Coers
Texas Instrument's, Component's Group, Dallas, Texas
<eureka>
Controlling duty cycle and rep rate independently
by W. D. Harrington
University of Florida, Communication Science's Laboratory, Gainesville, Fla.
<eureka>
Pulse generator accuracy is immune to aging
by Frank Cicchiello
Digilog System's Inc., Willow Grove, Pa.
<eureka>
Generator's duty cycle stay's constant under load
by. Arthur R. Klinger
School of Health Care Science's, Sheppard AFB, Wichita Falls, Texas
<eureka>
Generator independently varie's pulse rate and width
by Mahendra Shah
Univ. of Wisconsin, Space Science and Engineering Center, Madison. Wis.
<eureka>
Generating nanosecond pulse's with TTL monostable's
by Robert J. Broughton
Yale University, New Haven, Conn.
<eureka>
Single switch regulate's number of pulse's
by Mahesh Bhuta
IBM Corp., General Product's division, San Jose, Calif.
<eureka>
Binary input determine's pulse-generator frequency
by Mahendra J. Shah
University of Wisconsin, Madison, Wis.
<eureka>
Pulse generator produce's programable burst
by John F. Wakerly
Stanford University, Stanford, Calif.
<eureka>
Bootstrap circuit generate's high-voltage pulse train
by Lawrence H. Bannister
Center for Space Research, MIT, Cambridge, Mass.
<eureka>
Delay line in shift register speed's m-sequence generation
by J. T. Harvey
Amalgamated Wireless (Australasia) Ltd., North Ryde, Australia
<eureka>
One-shot with feedback loop maintain's constant duty cycle
by H. P. D. Lanyon
Worcester Polytechnic Institute, Worcester, Mass.
<eureka>
Adjustable pulse generator feature's rate alarm
by Frank N. Cicchiello
Geometric Data Corp., Wayne, Pa.
<eureka>
43. Rectifier's
<eureka>
Rectifying wide-range signal's with precision, variable gain
by Jerald Graeme
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Comparator and D-MOS switch rectify small signal's linearly
by Tom Copper
TRW System's, Redondo Beach, Calif.
<eureka>
Full-wave rectifier need's only three matched resistor's
by Jerald Graeme
Burr-Brown Research Corp., Tucson, Ariz.
<eureka>
Op amp with feedback make's full-wave rectifier
by Richard Knapp and Roger Melen
Stanford University, Palo Alto, Calif.
<eureka>
44. Security circuit's
<eureka>
Latch circuit's interlock remote switche's electrically
by Jack Elias
Honeywell Inc., Fort Washington, Pa.
<eureka>
Auto intrusion alarm use's C-MOS circuit's
by F. E. Hinkle
Applied Research Laboratorie's, University of Texas, Austin, Texas
<eureka>
Twin oscillator's form intruder detector
by Joshua Premack
Honeywell Inc., North Hopkin's, Minn.
<eureka>
Electronic combination lock offer's double protection
by Louis F. Caso
Bethpage, N.Y.
<eureka>
Digital combination lock is virtually crackproof
by Dale Platteter
Naval Weapon's Support Center, Crane, Ind.
<eureka>
45. Sensor's
<eureka>
Capacitive transducer sense's tension in muscle fiber's
by Robert M. Wise
Medical College of Virginia, Richmond, Va.
<eureka>
Photodetector sense's motion in noisy surrounding's
by Richard T. Laubach
National Cash Register Co., Cambridge, Ohio
<eureka>
Two-component light sensor has high voltage output
by Thomas T. Yen
Statham Instrument's Inc., Oxard, Calif.
<eureka>
46. Switching circuit's
<eureka>
Doubling breakdown voltage with cascoded transistor's
by Peter T. Uhler
Tinker Air Force Base, Midwest City, Okla.
<eureka>
Solid-state dpdt switch prodive's current reversal
by Don DeKold
Santa Fe Junior College, Gainesville, Fla.
<eureka>
Attenuating transient's in analog FET switche's
by Leland Shaeffer
Siliconix Inc., Santa Clara, Calif.
<eureka>
Transistor gating circuit cut's signal delay to 100 ps
by Arthur J. Metz
Tektronix Inc., Beaverton, Ore.
<eureka>
Op amp cancel's video switching transient's
by Steven E. Holzman
Electromagnetic System's Laboratorie's, Sunnyvale, Calif.
<eureka>
Analog gate and zener diode give 70-dB isolation at 80MHz
by Roland J. Turner,
General Electric Co., King of Prussia, Pa.
<eureka>
C-MOS touch-switch array control's analog signal's
by Max W. Hauser
Berkeley, Calif.
<eureka>
Switching large ac load's with logic-level signal's
by Lynn S. Bell, Bell Engineering, Tucson, Ariz.,
and R. M. Stitt, University of Arizona, Tucson, Ariz.
<eureka>
47. Temperature control's
<eureka>
Diode plus low-cost op amp make's accurate thermostat
by Robert Koss
Adac Inc., Colchester, Vt.
<eureka>
Soldering iron convert's to constant-temperature probe
by Mahendra J. Shah
Univ. of Wisconsin, Space Science and Engineering Center, Madison, Wis.
<eureka>
Using transistor array's for temperature compensation
by Mahendra J. Shah
University of Wisconsin, Madison, Wis.
<eureka>
Diode pair sense's differential temperature
by Don DeKold
Dekolab's, Gainesville, Fla.
<eureka>
Temperature compensation for high-frequency transistor's
by Bert K. Erickson
General Electric Co., Syracuse, N.Y.
<eureka>
Direct-reading coverter yield's temperature
by James Williams and Thomas Durgavich
Massachusetts Institute of Technology, Cambridge, Mass.
<eureka>
48. Timing circuit's
<eureka>
Silent timer warn's of tape run-out
by Vernon R. Clark
Applied Automation Inc., Bartlesville, Okla.
<eureka>
Compensating the 555 timer for capacitance variation's
by Kenneth Lickel
Phillips Medical System's Inc., Shelton, Conn.
<eureka>
Discriminator display's first of four response's
by John S. French
Western Electric Co., Inc., Sunnyvale, Calif.
<eureka>
Simple logic arrangement identifie's first event
by Stephen Phelps
Santa Fe Community College, Gainesville, Fla.
<eureka>
Making music with IC timer's
by Kenneth R. Dugan
General Telephone and Electronic's, Clearwater, Fla.
<eureka>
Extending time delay with an emitter-follower
by Victor Hatch
Peripheral Power System's, San Jose, Calif.
<eureka>
Getting extra control over output period's of IC timer
by Arthur R. Klinger
United States Air Force, Sheppard Air Force Base, Wichita Falls, Texas
<eureka>
Digital clock/calendar offer's dual-mode display
by Gregory A. Baxes
BaKad Electronic's, Mill Valley, Calif.
<eureka>
Timer pulse width's range from second's to hour's
by Ken Erickson
Interstate Electronic's Corp., Anaheim, Calif.
<eureka>
49. Trigger's
<eureka>
Schmitt trigger prevent's clock train overlap
by R. R. Osborn
Robert's Enterprise's, Flagstaff, Ariz.
<eureka>
Integrated timer operate's as variable Schmitt trigger
by Maj. Arthur R. Klinger
United States Air Force, McCoy Air Force Base, Fla.
<eureka>
50. Voltage reference's
<eureka>
Stable voltage reference use's single power supply
by Mahendra J. Shah
University of Wisconsin, Madison, Wis.
<eureka>
Single-supply reference source use's self-regulated zener
by William Goldfarb
Cornell University, Ithaca, N.Y.
<eureka>
Variable voltage source has independently adjustable TC
by Nathan O. Sokai
Design Automation Inc., Lexington, Mass.
<eureka>
51. Voltage regulator's
<eureka>
Extra resistor help's regulator share load with transistor
by Dale Hileman
Sphygmetric's Inc.
Woodland Hills, Calif.
<eureka>
555 as switching regulator supplie's negative voltage
by S. L. Black
Western Electric Co., Columbus, Ohio
<eureka>
Regulator for standby supply handle's large load current's
by James Allen
Honeywell Inc., Aerospace Division, St. Petersburg, Fla.
<eureka>
Temperature limiting boost's regulator output current
by Mahendra J. Shah
University of Wisconsin, Space Science & Engineering Center, Madison, Wis.
<eureka>
Boosting IC regulator current with almost no power loss
by Don Kesner
Motorola Inc., Semiconductor Product's Div., Phoenix, Ariz.
<eureka>
Adding foldback resistor provide's overload safety
by William J. Riley
General Radio Co., Bolton, Mass.
<eureka>
Current-sharing design boost's regulator output
by Marvin Vander Kool
National Semiconductor Corp., Santa Clara, Calif.
<eureka>
Economical serie's regulator supplie's up to 10 ampere's
by J. E. Buchanan and C. W. Nelson
Westinghouse Electric Corp., System's Development Division, Baltimore, Md.
<eureka>
Switching regulator produce's constant-current output
by Steven E. Summer
Hauppauge, N.Y.
<eureka>
Regulating supply voltage all the way down to zero
by Brother Thomas McGahee
Don Bosco Technical School, Boston, Mass.
<eureka>
Regulator for op amp's practically power's itself
by Richard Eckhardt
Electronic's Consulting & Development, Cambridge, Mass.
<eureka>
Regulating voltage with just one quad IC and one supply
by R. A. Koehler
York University, Toronto, Canada
<eureka>
Regulating high voltage with low-voltage transistor's
by Mahendra J. Shah
University of Wisconsin, Madison, Wis.
<eureka>
Regulating high voltage's with low-voltage zener's
by Glen Coers
Texas Instrument's, Component's Group, Dallas, Texas
<eureka>
Other important book's from McGraw-Hill
<eureka>
Basic's of Data Communication's
<eureka>
Edited by Harry R. Karp,
Editor-in-Chief, Data Communication's.
303 pp., illus.
<eureka>
Aimed at specialist's and manager's who need to know about thepresent state of the art of network's, the book provide's information to help you participate in and contribute to the growth of this increasingly important and sophisticated field. It familiarized you with the presently available method's and equipment that can be utilized to tailor a data communication's system to the particular need's of a specific business operation. It also alert's you to the kind's of network's and data communication application's that are predicted for the future. A highly useful feature is the book's discussion of cost's, which are so important in the design and operation of any data communication's network.
<eureka>
Large Scale Integration
<eureka>
Edited by Laurence Altman,
Sr. Editor, Electronic's.
216 pp., illus.
<eureka>
With new semiconductor technique's, low-cost circuit's can now perform even the most demanding processing job's, but the technology has advanced so fast and in so many form's that the design information is widely scattered in the literature. This practical book answer's the need for a central depository of LSI information. Covering a wide range of LSI application's, technology, breakthrough's, and problem-solving method's, it contain's the essential building block's of an array of powerful new ciruit tool's. Whether you deal with equipment or system's, you can greatly benefit by applying LSI in solving day-to-day problem's.
<eureka>
Applying Microprocessor's
New Hardware, Software and Application's
<eureka>
Edited by Laurence Altman
and Stephen Scrupski.
200 pp., illus.
<eureka>
In few short year's, microprocessor's have developed from a promising new technology into the most versatile and powerful tool's electronic's engineer's have ever had. Their application's seem almost limitless. Wherever a programmable, large-scale-integrtaed circuit can be worked into a system, there's a remarkably inexpensive microprocessor for the job. This collection of recent article's from ELECTRONIC'S is designed to smooth your way to mastery of the new microprocessor design method's. It give's you both an overview of the state of the art and a wealth of design idea's, analyse's, and practical application's. Plenty of diagram's, chart's, table's, and photograph's complement the text of this unique reference.
<eureka>
Microprocessor's
<eureka>
Edited by Laurence Altman,
Sr. Editor, Electronic's,
216 pp., illus.
<eureka>
The microprocessor is on the threshold of becoming a billion-dollar industry. This collection of acticle's from Electronic's magazine was published to give you a general overview of the technology, provide design idea's, analyze specific system's, and explain many practical application's. Generously illustrated with diagram's, photograph's, chart's, and table's, the volume is a valuable reference for every engineer and designer interested in the ever-expanding microprocessor field and it's practical application's in system's.
<eureka>
At your bookstore or write to Suite 26-1, McGraw-Hill
<eureka>
McGraw-Hill Book Company
Serving the Need for Knowledge
1221 Avenue of the America's
New York, N.Y. 10020
<eureka>
Other important book's from McGraw-Hill
<eureka>
Basic's of Data Communication's
<eureka>
Edited by Harry R. Karp,
Editor-in-Chief, Data Communication's.
303 pp., illus.
<eureka>
Aimed at specialist's and manager's who need to know about thepresent state of the art of network's, the book provide's information to help you participate in and contribute to the growth of this increasingly important and sophisticated field. It familiarized you with the presently available method's and equipment that can be utilized to tailor a data communication's system to the particular need's of a specific business operation. It also alert's you to the kind's of network's and data communication application's that are predicted for the future. A highly useful feature is the book's discussion of cost's, which are so important in the design and operation of any data communication's network.
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Large Scale Integration
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Edited by Laurence Altman,
Sr. Editor, Electronic's.
216 pp., illus.
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With new semiconductor technique's, low-cost circuit's can now perform even the most demanding processing job's, but the technology has advanced so fast and in so many form's that the design information is widely scattered in the literature. This practical book answer's the need for a central depository of LSI information. Covering a wide range of LSI application's, technology, breakthrough's, and problem-solving method's, it contain's the essential building block's of an array of powerful new ciruit tool's. Whether you deal with equipment or system's, you can greatly benefit by applying LSI in solving day-to-day problem's.
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Applying Microprocessor's
New Hardware, Software and Application's
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Edited by Laurence Altman
and Stephen Scrupski.
200 pp., illus.
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In few short year's, microprocessor's have developed from a promising new technology into the most versatile and powerful tool's electronic's engineer's have ever had. Their application's seem almost limitless. Wherever a programmable, large-scale-integrtaed circuit can be worked into a system, there's a remarkably inexpensive microprocessor for the job. This collection of recent article's from ELECTRONIC'S is designed to smooth your way to mastery of the new microprocessor design method's. It give's you both an overview of the state of the art and a wealth of design idea's, analyse's, and practical application's. Plenty of diagram's, chart's, table's, and photograph's complement the text of this unique reference.
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Microprocessor's
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Edited by Laurence Altman,
Sr. Editor, Electronic's,
216 pp., illus.
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The microprocessor is on the threshold of becoming a billion-dollar industry. This collection of acticle's from Electronic's magazine was published to give you a general overview of the technology, provide design idea's, analyze specific system's, and explain many practical application's. Generously illustrated with diagram's, photograph's, chart's, and table's, the volume is a valuable reference for every engineer and designer interested in the ever-expanding microprocessor field and it's practical application's in system's.
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At your bookstore or write to Suite 26-1, McGraw-Hill
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McGraw-Hill Book Company
Serving the Need for Knowledge
1221 Avenue of the America's
New York, N.Y. 10020
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0-07-019157-3
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