Handbook of Electronic Control Circuits【2025|PDF|Epub|mobi|kindle电子书版本百度云盘下载】

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ALARM CIRCUITS1

Balanced-Capacitance Antenna Alarm Protects Barbed-Wire Fence1

Comparator Circuit for Magnetic-Tape Printer Sounds Alarm If Copy Deviates from Master2

Failure of Picture or Sound Carrier Trips TV Transmitter Alarm3

Conelrad Alarm Is Triggered by Loss of Receiver AVC Voltage4

Crystal Transducers in Acoustic Chamber Detect Breaks in Moving Film6

Electronic Highway Scale Trips Alarm If Moving Truck Is Overweight7

Transistorized Crevasse Detector Uses A-F Transmitters and Receivers8

AUDIO CONTROL CIRCUITS10

Speech Rejector Differentiates between Damped Speech and Undamped Music10

Biased-Diode Squelch Circuit Mutes Magnetic-Tape Print-Through12

Speech-Music Discriminator Silences Radio Loudspeaker During Commercials13

Automatic Speech Amplitude Control Provides Differentiation and Clipping14

Automatic Fine Tuning Circuit Controls TV Sound-to-Picture Ratio15

Heartbeats Are Made Audible by Frequency-Modulating 1,000-CPS Oscillator18

Burst-Modulated A-F Transmitter Controls Tuned-Reed Induction Paging Receivers18

ATHODE-RAY CONTROL CIRCUITS20

Ferrite Disk on Engine Shaft Generates Input for Cathode-Ray Rotation Analyzer20

Four-Thyratron Sawtooth Pulser Produces True Voltage-Current Curves on Scope21

Electronic Shutter for TV Kinescope Recorder Passes Exactly 525 Lines22

Isoecho Contour in Weather Radar Shows Center of Thunderstorm23

Signal-Triggered Sweep Magnifies Pulse Widths on Scope24

Synchronizer Feeds Transients to 12 Cathode-Ray Tubes Having Different Base Lines26

Beam-Direction Marker Circuit for Scope Gives Comet-Shaped Trace28

Magnetically Deflected Oscilloscope Uses 21-Inch Television Picture Tube28

COMPUTER CONTROL CIRCUITS31

Transistorized Gate,Flip-Flop,Counter and Shaper Circuits for Digital Computers31

Read and Write Amplifier for Digital Data in Tape Systems32

Dual Chopper-Stabilized Operational Amplifier for Analog Computers35

Simple Operational D-C Amplifier Is Basis of Desk-Size Differential Analyzer35

Analog-Digital Converter Generates Pulse Frequency Proportional to D-C Input Voltage36

Direct-Coupled,Emitter-Coupled and Resistance-Coupled High-Speed Flip-Flops38

Transistorized Trigonometric Function Generator Provides Cosine of Input Voltage39

Precision Digital Delay Generator for Radar and Sonar Calibration and Target Simulation40

Sine-Cosine Approximator for Radar Computer Uses Diode Function Generator43

Nine-Bit Word Generator Checks Digital Computers at Pulse Rates up to 1 MC44

Probability Computer Produces Output Pulse When Noise Exceeds Reference Threshold44

Digital Computer Clock Circuits Use Germanium Transistors Either at Saturation or Cutoff45

Triangular-Wave Generator and D-C Operational Amplifier Serve in Analog Multiplier47

Transistor Matrix Gives Simultaneous Binary Addition and Multiplication49

Combined D-C Amplifier and Chopper Amplifier Give High Zero Stability51

Zero-Crossing Detector Aids Analysis of Brain Waveforms51

Transistorized Analog-Digital Converter Uses Feedback Subtraction53

COUNTING CIRCUITS57

Transistorized Decade Counter Uses Cascaded Bistable Multivibrators57

Batching Counter Actuates Solenoid at Predetermined Count and Resets Automatically57

Unijunction Trahsistors Simplify Design of Bistable Stages for Ring Counter59

Reversible Binary Counter Determines Variations in PCM Pulse Intervals60

Coincidence Detector Counts＇ Missing Pulses in Radar Magnetron Output62

Automatic Bacteria Colony Counter Uses Anticoincidence Circuits64

Loudspeaker Serves as Microphone for Simple Shot and Blast Counter67

Predetermined Counter and Gate Fire Flashlamps in Missile Test Lab67

Four-Decade Decimal Counter Uses Beam-Switching Tubes69

Ring-of-10 Counter Having Four ON Stages Requires Only Three Feedback Resistors Per Stage72

Binary-Decimal Counter Uses Logical AND Gates in Feedback Loop74

DIRECT-CURRENT AMPLIFIER CIRCUITS76

Feedback Increases Input Impedance of Transistor D-C Amplifier76

D-C Amplifier for Voltmeters and Analog Computers Has Infinite Input Impedance and Infinite Voltage Range76

Wide-Band Differential Amplifier for Null Detection78

Silicon-Diode Electronic Chopper Stabilizes All-Triode D-C Amplifier79

Low-Drift Transistorized Differential D-C Amplifier Uses Silicon Temperature-Compensating Resistor81

Juifction-Transistor D-C Amplifier for Transistor Voltmeter82

Differential Input Stage Improves Feedback Stabilization of D-C Amplifier83

Vibrating-Capacitor Modulator Changes D-C Output of Differential Analyzer to A-C84

Electronically Controlled Chopper Boosts Sensitivity of Infrared Detector84

Twin-Triode Electronic Chopper Handles High D-C Input Voltages86

Feedback Through Pentode Holds Cathode Follower at Unity Gain86

Simple Differential D-C Amplifier for Control Systems Amplifies Difference Between Two Signals87

MACHINE CONTROL CIRCUITS88

Size Control Circuit for Automatic Cylinder Hone88

Level-Deviation Detector Locates Flaws in Magnetic Tape88

Recorded Tone Bursts Permit Dialing of 45 Taped Spot Announcements89

Automatic Stop Circuit for Tape Recorder91

Electrode Dri e-Motor Servo for Spark Machining91

Auto Transmission Gear Contour Gage Controls Automatic Hobber and Gear Sorter93

Four-Transistor Inverter Drives Two-Phase Drag-Cup Servo Motor95

Muscle Potentials of Patients Control Respiration Rate of Iron Lung96

Tracer Control Circuit Maintains Constant Cutting Velocity for Milling Machine96

Three-Feed Control System for Metal-Cutting Band-Saw97

Carbon Dioxide Analyzer in Feedback Loop Controls Valve Motor98

Eight Audio Tones Recorded on Magnetic Tape Control Overhead Crane99

Circuit Controls Vacuum Actuators of High-Speed Tape Transport100

MAGNETIC AMPLIFIER CIRCUITS102

Transistor Magnetic Inverter Uses Differential Multivibrator for Signal or Power Conversion102

Magnetic-Amplifier Square-Law Circuits Serve in Four-Quadrant Analog Multiplier103

Magnetic Amplifiers and Saturating Transformer Regulate D-C Power Supply104

Self-Balancing Magnetic Amplifier Drives 400-CPS Servo-Motor106

Magnetic Servo Amplifier Drives Gyro Indicator108

Magnetic Amplifiers Control Frequency and Voltage of Reflex Klystron109

Magnetic-Core Frequency Divider Controls ITV Sync-Generators110

Half-Wave Magnetic Amplifier Drives Two-Speed High-Impedance Servo-Motor112

Saturable-Core Transistor Oscillator Integrates Gas Flow Data113

Synchronously Switched Biased Diodes Increase Gain of Magnetic Amplifier114

MEASURING CIRCUITS116

D-C Error Voltage of Resistor-Checking Wheatstone Bridge Is Amplified to Drive Go-No-Go Meter116

Circuit Delivers Pulse Width Proportional to Time That Signal Is Between Specified Voltage Levels117

Pulsed Eddy Currents Measure Thickness of Metal Coating on Base Metal118

Phase Comparator Locates Null as Float Moves Core of Differential Transformer in Liquid Density Gage119

Magnetic Quadrupole Is Probe of Magnetometer Using Servo Loop120

Fart-Acting Nonlinear Feedback Stabilises Gain of Transistorized Pulse Amplifier121

Ergmeter Uses Bolometer Bridge to Measure Energy of Discharging Capacitor122

Automatic Range-Selecting Servo for Electronic Voltmeter123

Electronic Integrator-Amplifier Speeds Grading and Matching of Magnetic Cores125

Hot-Wire Thermal Bridge Is Voltage Standard for Expanded-Scale A-C Voltmeter125

Bootstrapped-Collector Circuit for Starved Transistor Has 500-Megrihm Input Resistance126

Differentiating Circuit Accurately Locates Zero of A-C Voltage127

Counter on Shaft of Servo-Driven Self-Balancing Potentiometer Gives Digital Presentation for VTVM127

Tuned Voltmeter Measures First Four Harmonies of Power-Line Frequency129

Meacham-Bridge Oscillator and Frequency Detector Measure Ice Coating Thickness129

Admittance-Measuring Circuit Determines Setting Time of Cement130

Linear Potentiometer and Operational Amplifier Serve as Wide-Range Tachometer131

Capacitance Pickup on Angle-of-Attack Potentiometer Boosts Accuracy134

Schering Bridge and Phase-Sensitive Voltmeters Sort Capacitors in Tolerance Ranges135

Portable Vibration Meter Uses Transistorized Integrating Amplifier and Demodulator137

Automatic Waveform Detector Uses Time-Sampling to Sort Ferrite Cores138

Thickness of Nonferrous Metals Is Gaged by Electromagnetic Absorption140

Flutter and Wow Meter Measures Variations in Tape Recorder Transport Speed141

Checking Insulation Resistance of Pressure-Sensing Potentiometers142

Second-Harmonic Flux-Gate Magnetometer Serves as Steel Tubing Hardness Tester143

Tester Checks Static and Dynamic Unbalance of Dual-Triode Sections144

Dual-Channel Doppler Radar Serves as Rate-of-Climb Meter145

Automatic Go-No-Go Comparator Makes 350 Checkout Measurements on Missile147

METAL DETECTOR CIRCUITS150

Proximity Control Responds to Any Metal Near Pickup Coil150

Magnetic Concentricity Gage Trips Flashtube Trigger Circuit150

Detector Traces Buried Cables Carrying 250-CPS Signal152

Tack Detector for Shoes Trips Alarm When Probe Touches Metal153

Inexpensive Metal Detector Locates Concealed Conduits,Pipes and Ducts154

MULTIVIBRATOR CIRCUITS156

Two Multivibrators and Variable Delay Line Generate Variable-Width Pulses156

A-C Tachometer Drives Multivibrator Circuits of Expanded-Scale Speed Indicator156

Multivibrator,Blocking Oscillator and Counter Circuits Simulate Radar Targets158

Fast-Switching Multivibrator-Controlled Relay Circuit159

Electronic Chopper Replaces Vibrator in Television Modulation Indicator160

Simple Sweep Generator for Oscilloscopes Has Range up to 500 KC161

NUCLEONIC CIRCUITS163

Transistorized Geiger-Muller Probe Traces Radioisotopes in Oil Well163

Time Interval Analyzer Uses Modified Chronotron Circuits to Time Nuclear Particle Flights163

Transistorized Geiger Counter Has High-Voltage Generator and Ratemeter165

Cold-Cathode Count-Rate Circuits Monitor Alpha Radiation167

Eddy-Current Circuit Detects Hairline Flaws in Fine Wire167

Time-of-Arrival Indicator Blows Fuse to Stop Clock When Radioactive Fallout Arrives168

Transistorized Gamma-Radiation Monitor Uses D-C/D-C Converter169

Simple G-M Radiation．Monitor and Recorder171

OSCILLATOR CIRCUITS172

Self-Quenching Superregenerative Oscillator Produces Pulses of 500-CPS Tone172

Pulse Generator Feeds Controlled-Duration Signals to Two Channels172

Pulse Modulator Generates Uniform Pulses for Widely Varying Load174

Beat-Frequency Subaudio Oscillator Requires No Output Amplifier175

Electronic Organ Uses Neon Lamps as Tone Generators and Frequency Dividers176

Closed-Loop Regulator Controls High Power Induction Heater177

Direct-Coupled Multiple-Feedback R-C Oscillator Covers 4 CPS to 350 KC178

Variable-Frequency＂Oscillator Controls Firing Rate of Machine Guns179

Double-Triode and Two Diodes Generate Negative-Going Staircase180

Oscillator Provides Beeps Required when Recording Telephone Conversations181

Thyratron Delivers Predictable Half-Sine Pulse When Triggered181

Fork-Controlled Generator Provides Seven Standard Audio Frequencies Simultaneously182

Oscillator-Sharing Simplifies Circuit of Electronic Organ184

Neon Tubes Back to Back Generate Keep-Alive Pulses for Recorder185

Low-Distortion Audio Oscillator Uses Biased Diodes to Eliminate Hunting186

Transistorized Crystal-Controlled 1-MC Oscillator Is Highly Stable187

Sonar Target Simulator Produces Echo Signal for Servicing Purposes188

Variable-Gain Negative-Feedback Amplifier Stabilises Feedback Oscillator188

Frequency Meter Quickly Measures Dynamic Compliance of Phono Cartridge189

Frequency Comparator Applies Error Voltage to Repeller of Klystron Oscillator189

PHOTOELECTRIC CIRCUITS191

Camera Shutter Tester Uses Photodiode to Feed D-C Amplifier191

Multiplier Phototube on Lathe Drives Electronic Counter That Reads Microinches192

Photoelectric Function Generator Uses Oscilloscope as Light Source193

Photoelectric Illumination Gontrol Responds to Bright Sunlight195

Vidicon Camera Circuits Detect Changes in Nearly Identical Photographs195

Banks of Multiplier Phototubes Give Coordinates of Test Missile196

Photocell-Controlled Multivibrator Generates Tone Frequency Proportional to Light193

Photoelectric Counter Checks Frame Rate of Movie Camera198

Three-Phototube Pickup Checks Hue and Saturation of Color TV Tubes199

Frequency-Modulated Light Beam Completes Feedback Loop for Control System200

Stabilized Photoformer Circuit Feeds Function of Input Voltage to Analog Computer202

POWER SUPPLY CONTROL CIRCUITS204

Overcurrent Protection Circuit for Transistor Power Supply204

Energy in Received Radio Waves Provides Operating Power for Transistor Circuits205

Junction Transistor Serves as Ripple Filter for Low-Voltage Power Supply207

Control of Instantaneous Voltage and Current in Power Transistor Boosts Efficiency207

Servo Discriminator Feeding Silicon-Diode Modulator Controls Aircraft Alternator Frequency208

Crystal-Controlled 28-Volt Bistable Voltage-Doubling Chopper Drives Synchronous Clock209

Photoflash Power Converters Use Power Transistors in Symmetrical Inverter and Blocking Oscillator Circuits210

Zener Diodes and Silicon Transistor Regulate Output of Bridge Rectifier212

Controlled-Firing-Time Thyratron Inverter Eliminates Bulky Saturable Reactors212

Solid-State Rectifiers and High-Current Regulator Tubes Eliminate Power Transformer in Regulated Power Supplies214

R-F Power Supply Replaces Vibrator Supply for Portable Infrared Viewers215

Regulated Transistor Power Supply Uses Direct-Coupled Amplifier in Feedback Loop216

Transistorized-Power and Bridge Excitation Supply for Strain-Gage System216

High-Voltage Power Supply Uses 12．5-KC Oscillator and Corona-Tube Regulator218

Variable-Frequency Power Supply for Servo Testing Uses Pentode Cathode Followers219

Triode Serves as Grid Leak Resistor in Regulated Power Supply220

PROCESS CONTROL CIRCUITS222

Basic Amplifier,Modulator,Demodulator and Power Supply Circuits for Process Control222

Audio-Level Trigger Circuit Shuts Off Crystal Lapping Machine224

Closed-Loop Controller Provides Rate and Reset Action225

Three-Channel Decade Counter Controls Flow of Liquid Plastics226

Pressure Transmitter Controls Tuned Oscillator for Set-Point Control227

Galvanometer-Type Controller Feeds F-M Circuit Giving D-C Output227

Servo-Controlled Pump Maintains Constant Fluid Volume228

REMOTE CONTROL CIRCUITS230

Transmitter and Receiver Circuits for Radio-Controlled Garage-Door Opener230

Single-Stage Franklin Superregenerator for Radio Remote Control230

Ultrasonic．Gong Controls Four Functions in TV Set232

Carrier-Current Control Through Power Line Tunes TV Set233

Microwave Link Controls Fog Alarm on Unattended Island Site234

Selective A-F Circuit Fires Squib or Operates Relay for Missile Control235

Ultrasonic Tones Control Tuning Motor in TV Set236

Tone-Actuated Programmer Mixes Records with Taped Announcements237

Two-Transistor Superregenerative Remote Control Receiver240

Flashlight Operates Photoelectric Remote Control for TV Set241

ERVOMECHANISM CIRCUITS242

Servo Amplifiers Use Power Transistors to Drive A-C or D-C Motors242

Silicon Power Transistors Drive Split Control Winding or Servo-Motor242

Zener Diode in Feedback Loop Provides AGC for A-C Servo243

Servo Accelerometer Uses R-F Oscillator with Null Balance244

Servo Positioner for Component Inserter Is Programmed by Cards or Tape245

Self-Setting Servo Gate Rejects Random Interference Pulses246

Negative Feedback Provides Stability for Push-Pull Transistor Servo Amplifier247

Servo System Controlled by Radar I-F Signal Tunes Magnetron for Search or AFC248

Phase-Selective Gate Rejects Quadrature Signals in Servo Loop250

Transistorized Relay Servo Uses Step-Function Potentiometer251

Transistorized Servo Amplifier Drives Two-Speed Motor Directly251

？ur-Transistor Preamplifier Feeds Transistor-Magnetic Amplifier Servo252

Simple Infrared Analyzer Detects Leaks in Air Chamber253

Phase-Stabilized UHF Servo Amplifier Conatus Steerable Antenna256

SWITCHING CIRCUITS258

Simple Electronic Switch Gives Transient-Free Commutating258

Zener Diode＇ Controls Triggering Level of Push-Pull Transistor Relay258

Ring-of-Five Neon-Lamp Oscillator Provides Sequential Switching259

Clearing,Resetting and Transfer-Storage Circuits for Beam-Switching Tubes260

D-C Voltage Comparator Actuates High-Speed Transistorized Electronic Switch262

Balanced-Input Transistorized Electronic Relay264

Two-Way Sampling Switch Using．Compensated Comparators Has High Input Impedance265

Beam-Switching Tube Switches Low-Level Capacitive Transducer Signals266

Voice-Actuated Switching Circuit Controls Microwave Party Line267

Triode Makes Relay Pull-In and Drop-Out Currents Equal268

Multichannel Electronic Switch for Oscilloscope Uses Flip-Flops in Ring268

Electronic Crowbar Shorts Power Supply of High-Power Transmitting Tube to Prevent Flash-Arc Damage270

Coincidence Diodes Gate Transistorized Six-Channel Electronic Switch272

Saturated and Nonsaturated Transistor Flip-Flops Use Single and Double Triggering274

Ultrasonic Switch Controls Diversity Receivers275

TELEMETERING CONTROL CIRCUITS276

Transistorized Micromicroammeter Feeds Radiation Data to Satellite Telemeter276

Underwater Telemetering System Uses Four 60-KC Ultrasonic Links276

Pulse-Position Telemetry Demodulator Compensates for Parameter Variations278

Transistorized Telemeter Transmitter for Balloon-Borne Radiation Detection280

Transistorized PDM Keyer Improves Airborne Telemetering System281

Telemetering Equipment in Sounding Balloon Monitors Cosmic Radiation283

Encoded Shaft Position Data Is Transmitted over Telephone Line284

Telemetering Transmitter in Rocket Produces PWM F-M Signals288

Eight-Transistor Transmitter Telemeters Scalp Voltages289

Telemetering Demodulator Converts Wide-Band F-M Data to PFM Data289

TEMPERATURE CONTROL CIRCUITS292

Proportional Heat Control Maintains Thermal Chamber at Preset Value292

Thermopile Actuates Current-Adjusting Temperature Controller293

Servo-Balanced Bridge for Compensated Thermocouple Gives Jet Engine Temperature295

Germanium Transistor Serves as Thermostat for Cold Junction297

TIMING CIRCUITS298

Extending Linearity Range of Thyratron Interval Timer298

Phantastron Circuit and Miller Integrator Used in Exposure Timer298

Millisecond Timer and Thyratrons Stop Die-Cutting Press after Cut-Through299

Doppler Radar Speed Meter Checks Highway Traffic301

Regenerative Frequency Dividers for 1-MC Crystal Source Provide 1-KC Power for Precision Clock302

Four-Thyratron Timer Triggered by Vertical Drive Pulses Exposes Camera for One TV Frame303

Double-Triggering Improves Stability of Phantastron Frequency Divider304

Current Transformer and Electronic Relay Turn on Running-Time Meter When Any Power Tool Is Used304

Ticks of Master Clock Synchronize Time Base of Cathode-Ray Watch Timer305

Astable Multivibrator Controls Pentode Gate for Pulsing Circuit306

ULTRASONIC CIRCUITS307

Doppler-Effect Ultrasonic Burglar and Fire Alarm307

Battery-Operated Resonance-Type Ultrasonic Thickness Gage307

Ultrasonic Vibrator Makes Beer Foam to Drive Out Air308

Adjustable Ultrasonic Paths in Air Simulate Multipath Communications309

Ultrasonic Pulses Detect Flaws in Coating of Uranium Slug310

Two-Transistor Broadband Ultrasonic Preamplifier for Hydrophones312

Pulsed Frequency-Modulated System Analyzes Ultrasonic Signal Returns312

Piezoelectric Transducer Drives Tip of Ultrasonic Soldering Iron314

Ultrasonic Phase Meter Measures Subsurface Water Velocity314

Quartz-in-Water Delay Line Simulates Radar Moving Targets316

Two-Receiver Ultrasonic System Measures Propagation in Sea Water317

Driver for Magnetostriction Transducer of Ultrasonic Impact Grinder319

WELDING CONTROL CIRCUITS321

Capacitor-Discharge Spotwelder Control Handles Metal Foils321

Timer Controls Thyratrons in High-Speed Resistance Welder322

Five-Function Programming Timer Controls Electrode Welder323

Toroid Feeding A-C Electronic Voltmeter Measures Spot-Welding Current325