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SAMPLE_AND_HOLD_WITH_OFFSET_ADJUSTMENT

Published:2009/7/20 22:15:00 Author:Jessie

SAMPLE_AND_HOLD_WITH_OFFSET_ADJUSTMENT
Use of 2N4393 JFET at input of opamp gives simple high-performance circuit having low leakage,Offset is easily adjusted with 1K pot.- FET Databook, National Semiconductor, Santa Clara,CA,1977,p6-26-6-36.   (View)

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27_MHz_mixerfor_CB_operation_using_a_TIS148_dual_gate_MOSFET

Published:2009/7/20 22:15:00 Author:Jessie

27_MHz_mixerfor_CB_operation_using_a_TIS148_dual_gate_MOSFET
27 MHz mixerfor CB operation using a TIS148 dual-gate MOSFET (courtesy Texas Instruments Incorporated).   (View)

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TRANSISTORIZED_COLOR_TV_AUDIO

Published:2009/7/20 22:14:00 Author:Jessie

TRANSISTORIZED_COLOR_TV_AUDIO
Three-stage class A amplifer provides output of 2 w. Feedback from emitter of Q9 to base of Q7 provides over-all d-c stability.-D. Bray, Solid State Makes Debut in Big-Screen Color Tv, Electronics, 39:8, p 99-105.   (View)

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COLOR_BURST_GATING_SIGNAL_GENERATOR

Published:2009/7/20 22:13:00 Author:Jessie

COLOR_BURST_GATING_SIGNAL_GENERATOR
Provides burst gating pulses for operating balanced-diode pate used in studio switching of color tv programs.-J. O. Schroeder, Holding Video levels While Switching Studios, Electronics, 32:22, p 96-98.   (View)

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Power_function_generator_developing_sine_wavestriangular_waves_and_square_waves

Published:2009/7/20 22:13:00 Author:Jessie

Power_function_generator_developing_sine_wavestriangular_waves_and_square_waves
Power function generator developing sine waves,triangular waves and square waves. Operating frequency is 2 hertz to 20 kilohertz. VO is up to ±25 volts (50 volts peak to peak) across loads as small as 10 ohms, which produces a maximum of 2.5 amperes of output current. All capacitor working voltage ratings should be 50 volts DC. All resistors should be the half-watt type unless otherwise specified. Keep the lead at pin 2 of the op amp less than 2 inches or oscillations will result. Full power output is only obtainable up to about 5 kilohertz due to the op amp (courtesy Intersil, Inc.).   (View)

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3_digit_ISUP2_SUPL_DPM_with_LED_CPU_interface

Published:2009/7/20 22:13:00 Author:Jessie

3_digit_ISUP2_SUPL_DPM_with_LED_CPU_interface
3-digit I2L DPM with LED/CPU interface(courtesy Analog Devices, Inc.).   (View)

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COLOR_DEMODULATOR_1

Published:2009/7/20 22:13:00 Author:Jessie

COLOR_DEMODULATOR_1
Single demodulator in Japanese 7-inch color tv recovers the three difference signals in sequence by impressing color signal with load subcarrier that is advanced 120°in phase for each line. -Y. Sugihara, H. Ito and A. Horaguchi, From Japan a Startling New Color TV Set, Electronics, 38:11, p 81-94.   (View)

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27_MHz_autodyne_tuner_using_a_3N225_dual_gate_MOSFET

Published:2009/7/20 22:12:00 Author:Jessie

27_MHz_autodyne_tuner_using_a_3N225_dual_gate_MOSFET
27 MHz autodyne tuner using a 3N225 dual-gate MOSFET (courtesy Texas Instruments Incorporated).   (View)

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8_digit_multiplexed_LED

Published:2009/7/20 22:12:00 Author:Jessie

8_digit_multiplexed_LED
8-digit multiplexed LED (courtesy Motorola Semiconductor Products Inc.).   (View)

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LOW_DRIFT_SAMPLE_AND_HOLD

Published:2009/7/20 21:41:00 Author:Jessie

LOW_DRIFT_SAMPLE_AND_HOLD
JFETs provide complete buffering to sample-and-hold capacitor C1. During sample, al is turned on to provide charging path. During hold, Q1 and Q2 are turned off so discharge paths through transistors for C1 are each less than 100 pA.Q2 also serves as buffer for opamp so feedback and out-put current are supplied only from opamp source.- FET Databook, National Semiconductor, Santa Clara, CA, 1977, p 6-26-6-36.   (View)

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FET_OPAMP_SAMPLE_AND_HOLD

Published:2009/7/20 21:40:00 Author:Jessie

FET_OPAMP_SAMPLE_AND_HOLD
Meter indicates output signal when input is present and stores input in C1 when samples witch is open. Opamp is connected as unity-gain voltage follower. Charge on C1 will be drained within a few minutes by opamp shown. Charge can be held longer by changing to FET-input opamp or by opening both battery circuits with alternative DPDT switch SW2.Developed for classroom demonstrations.-F. M. Mims, Integrated Circuit Projects, Vol. 4, Radio Shack, Fort Worth, TX, 1977, 2nd Ed., p 61-69.   (View)

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BALANCED_OUTPUT_PENTODE_TWIN_TRIODE

Published:2009/7/20 21:39:00 Author:Jessie

BALANCED_OUTPUT_PENTODE_TWIN_TRIODE
Arrangement gives high gain, approaching 10,000, along with more ripple reduction than is generally required.-NBS, Hand-book Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. 1, Electron Tube Circuits, 1963, p N2-4.   (View)

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15_V_SINGLE_SUPPLY

Published:2009/7/20 21:37:00 Author:Jessie

15_V_SINGLE_SUPPLY
CA3160 opamp provides high input impedance and input voltage range of 0-10V. CA3080A functions as strobed current source for CA3140 output integrator and storage capacitor. Pulse droop during hold interval can be reduced to zero by adjusting 100K pot.- Linear Integrated Circuits and MOS/FET's, RCA Solid State Division, Somerville, NJ, 1977, p 271-272.   (View)

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TWIN_TRIODE_CASCADE

Published:2009/7/20 21:37:00 Author:Jessie

TWIN_TRIODE_CASCADE
Has self-contained reference voltage, and does not load reference tube. Is theoretically capable of highest possible gain obtainable with single-envelope d-c amplifiers.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. 1, Electron Tube Circuits, 1963, p N2-3.   (View)

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150_V_REGULATOR_WITH_EXTERNAL_REFER_ENCE

Published:2009/7/20 21:36:00 Author:Jessie

150_V_REGULATOR_WITH_EXTERNAL_REFER_ENCE
Permits wider supply voltage range and better operation thon arrangements using self-contained reference.-NBS, Hand. book Preferred Circuits Navy arrangements Electronic Equipment, Vol. 1, Electron Tube Circuits, 1963, p N2-4.   (View)

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SAMPLE_AND_HOLD

Published:2009/7/20 21:36:00 Author:Jessie

SAMPLE_AND_HOLD
CA3140 bipolar M0S opamp serves as readout amplifier for storage capacitor C1 which is charged by CA3080A variable opamp serving as input buffer and low-feedthrough transmission switch. CA3140 also provides offset nulling.- Circuit Ideas for RCA Linear ICs, RCA Solid State Division, Somerville, NJ, 1977, p 17.   (View)

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15__20__25_watt_AF_power_amplifier_with_Darlington_outputs

Published:2009/7/20 21:35:00 Author:Jessie

15__20__25_watt_AF_power_amplifier_with_Darlington_outputs
15__20__25_watt_AF_power_amplifier_with_Darlington_outputs

15-/20-/25-watt AF power amplifier with Darlington outputs (courtesy Motorola Semiconductor Products Inc.).   (View)

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Multi_output_low_voltage_power_supply_for_TEL_and_CMOS_

Published:2009/7/20 21:35:00 Author:Jessie

Multi_output_low_voltage_power_supply_for_TEL_and_CMOS_
Multi output low-voltage power supply for TEL and CMOS (courtesy Motorola Semiconductor Products Inc.).   (View)

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PENTODE_REGULATOP

Published:2009/7/20 21:35:00 Author:Jessie

PENTODE_REGULATOP
Reference lube is in cathode circuit of 6AK5, and plate load of pentode is high (1 meg), resulting in poor frequency response.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. 1, Electron Tube Circuits, 1963, p N2-2.   (View)

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TRACK_AND_HOLD_UP_TO_4_kHz

Published:2009/7/20 21:35:00 Author:Jessie

TRACK_AND_HOLD_UP_TO_4_kHz
Developed for tracking ±10 V AF input signal when control input is +5 V. When control drops to 0 V, series FETQ3 opens and input voltage at that time is stored on C1 for transfer to output through high impedance opamp A2.-R. S. Burwen, Track-and-Hold Amplifier, EDNIEEE Magazine, Sept.1, 1971, p 43.   (View)

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