104 EASY Projects for the Electronics Gadgeteer

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Название: 104 EASY Projects for the Electronics Gadgeteer

Автор: Robert M. Brown

Издательство: TAB BOOKS

Год: 1970

Страниц: 158

ISBN: 0-8306-0524-X, 0-6306-9524-9

Формат: PDF

Размер: 23.7 Мб

Язык: English

This could very well be a publishing first—a book devoted to the premise that most of the real fun in electronic tinkering is derived from scrounging and swiping, trial and error, and good, old - fashioned cheap - skating. You'll be surprised at the useful and fun things you can put together with a little imagination and available components.

You'll be even more surprised when you realize what can be done without tubes or transistors! The purpose of this book is to give you some food for thought along these lines and to clue you in on some tricks of the trade in getting the most for the least.

Contents

Introduction 9

Homebrew Light Meter 13

Tubeless/Transistorless Code Practice Monitor 14

Electric Combination Lock 15

Super Crystal Radio 16

Surplus Relay Lamp Flasher 17

Signal Generator 19

Electronic Thermometer 20

Audio Frequency Meter 21

Dry- Cell Rejuvenator 23

Flashgun Tester 24

Ultra-Cheap Signal Generator 25

TV Set Radio Receiver 27

Hi-Fi Tuner 28

Inexpensive Early Morning Alarm 30

Double Battery Supply For The Car 31

Sonalert Intrusion Alarm 32

Hi-Fi In The Car 33

A "Whistler" Listening Device 34

TV Ghost Eliminator 36

Adjustable Noise Generator 37

Professional Hygrometer 38

Perpetual Flasher 40

Tone Compensator For Tape Recorders 41

Electronic Tone Generator 42

9-Volt Battery Charger 43

Super Field Strength Meter 44

Telephone Intercom Adapter 46

Neon Bulb Oscillator 47

Add-On Noise Limiter 48

Full-Wave Noise Limiter 50

CB- To-Auto Antenna Adapter 51

Audio Wattmeter 52

Inexpensive Auto Battery Charger 54

Simple Crystal Detector 56

Super Band Spreader 57

Tunnel Diode Oscillator 58

Signal Blinker 59

Loudspeaker-To-Mike Converter 60

Electronic "Coin Toss" 61

Inexpensive Voltage Tri pi er 63

Line Voltage Control Unit 64

1000-Volt Buzzer Power Supply 65

Blow-Out Protector For Loudspeakers 67

Inexpensive Transistor Checker 69

Free-Power Batteryless Power Supply 71

Electrostatic Speaker Converter 72

Two TV Sets With One Antenna 74

Tube Rejuvenator 75

Oscilloscope Calibrator 77

Sequential Neon Flasher 79

Electrifying Worm Turner 80

Power Supply From Filament Transformers 82

Color TV Picture Roll Stopper 83

Electronic Anemometer 84

Bubble Lamp Night Lite 86

Scratch Filter For 45 RPM Discs 88

Subminiature Power Supply 89

The Mystery Alarm 90

Junkbox Modulation Indicator 91

Darkroom Timer Control 93

Effective 6-Meter Antenna Coupler 95

Tubeless Audio Squelch 96

AI I-Purpose Battery Charger 97

"Beeper" Transistor Tester 99

Simplest Field Strength Meter 100

Electronic Reflex-Action Game 101

Kilowatt RF Voltmeter 103

FM Tuner To Hi-Fi Adapter Unit 104

Light Dimmer 105

SCR Diode Checker 106

Mechanized Polarity Reverser 108

"Instant-On" Appliance Adapter 109

Cheater Cord Cure-Ail 110

Automatic Frequency Finder 111

World's Cheapest Intercom 113

150-Volt Universal Power Supply 114

An Electronic Shaver Converter 115

Shave-In-Your-Car Adapter 116

Romantic Light Dimmer 117

Taped CQ'ER Device 119

"The Vacationer" Automatic House Switch 121

9-Volt TR Battery Eliminator 122

Simplest Noise Limiter 123

Slide-Switch Loudness Control 124

99tf Stroboscope 126

12? Lightning Detector 127

Neon Bulb AC/DC Voltmeter 128

Simple RC Tester 129

Hi-Fi Notch Filter 131

Tubeless/Transistorless AM Modulator 132

Automatic Photo Slide Projector 133

Handy Tube Tester 135

AC Line Alarm 136

Super-Regen S Meter 138

Tubeless Loudspeaker CPO 139

Light Bulb Power Measurer 140

RF "Sniffer" Probe 141

Cheap Push-To-Talk Relay 142

Direct-Reading CB Power Wattmeter 143

Voltage Regulator Hash Trap 145

Universal AC Relay Silencer 146

Bike Generator AC-To-DC Converter 147

Foolproof Sequential Switching Adapter 148 Shortwave Trimmer-Booster For Vintage Receivers 149

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