Schematics and Circuits Index
A brand new different way to view the schematics.
This is just a list of old schematics, some with a BOM, mostly used as a reference design resource. NOTE: There is no instruction on how to build any of this stuff. You must use your own wits (or just Google it!).
Figure 159 : Random Circuit Diagram.
#
A
AC Solid-State Relay1Active Antenna Amplifier2Active FM Antenna Booster1Active Loop Antennas1Active UHF1Airband AM Radio2Alarm & Security6AM Broadcast Trap1AM IC Radio Receivers1AM Modulation Monitor1AM Modulator3AM Modulator 600 Watt1AM PLL Transmitters2AM Radio1AM Radio MW/VHF1AM Radio Oscillator Driver1AM Radio Receivers2AM Radio Transmitter1AM Radio Transmitter - DSB1AM Receiver and Transmitter1AM Transmitter 10W1AM Transmitter 25W1AM Transmitter 50 Watt1AM Transmitter Modulators2AM Transmitters6AM Tube Transmitter1AM/FM Radio4Amplifiers43Amplifiers - RF Linear1Amplifiers - Tube2Antenna2Antenna - Active13Antenna - Loop1Antenna - Matching Networks1Antenna - Selector1Antenna - Tuner3Antenna - Wire3Antenna Amplifier UHF1Antenna Filters1Antenna Loop VHF1Antenna Traps1Audio & Music11Auto Radio Hash Filter DC1Automatic Night Light1Automation & Control3
B
Balanced Line Receivers1Balanced Mixer - Bi-Directional1Band-pass Filters3Battery Chargers4Battery Voltage Tester1BFO Metal Detectors4BFO Oscillator1Blinky Sound Generator1Broadband Active Antenna1BUG - Data Error1BUG - No Schematic1Butler Oscillator1Butterworth Filters3
C
Cable Booster1Capacitor Decade Box1Clapp Oscillator1Coil Data - Regenerative2Color Organs1Colpitts Oscillator1Comb Filters1Combination Filters1Constant Current Chargers1Converters HF2Converters VHF1CPO1Crystal Doubler Oscillators1Crystal FM Oscillators1Crystal Oscillators4Crystal Radio2Crystal Radio Receivers2Crystal Selector1Crystal Tuned Amplifier1Current Carrier VLF Transmitter1Current-Sensing1CW Audio Filters1CW IDER2CW Radio Transmitter2
D
Darlington Transistor Oscillator1Delayed Relay Timer1Dice Games1Difference1Digital Recorders1Digital Voltmeter1Direct-Conversion Radio1DSB AM Radio Transmitter1Dual Output Voltage PSU1Dual-Inverter Line Receivers1
E
F
FET Balance Field Strength Meter1Filters28Fixed Single Output Voltage PSU1Flashing LED1FM Bug10FM Diversity Antenna2FM Oscillator2FM Radio1FM Receivers4FM Squelch Control1FM Transmitters3FM Transmitters4Frequency Counter1Frequency Selective Lamps1Frequency Selective LEDs1Fun & Games2Function Generator1Function Oscillator/Generator1
G
H
Hartley Oscillator2H-Bridge Motor Control1HF Radio Transceiver1HF Receive Converter1HF to AM Frquency Converter1High Current Power Supply1High Impedance1High Voltage Generators3High Voltage Power Supply1High-pass Filters5Home Alarm3Hybrid Tube Radio1
I
L
Lead Acid Chargers1LED Bargraph1LED Blinkers1LED Flasher1LED Projects3LED Strobe Light1LED Trek Scanner1Lie Detectors1Light Activated Relay1Light Controlled Relay1Light Dimmer1Light Operated Relay1Light Projects2Light Sequencer1Lighting Effects12Line Receivers3Linear Amplifier4Linear Amplifier 3CX800A71Liquid Level Alarm1Logarithmic1Loop Antennas1Low Frequency Converter1Low Power Amplifiers1Low Power FM Transmitters1Low Power Stereo Amplifier1Low Power Transmitter1Low Power UHF FM Transmitters1Low Power Video Transmitter2Low Voltage Lamp1Low-pass Filters4LW/MW Converter1
M
Mascot2Matching Networks - Antenna1Metal Detectors4Metronome1Mic Amplifier1Micro Amplifiers1MicroCHIP Programmer1Microcontroller1Microphone1Microphone Mixers1Microphone Mixers - Tone Control1Microphone Wireless2Mini Power Supply1MISC3MONO4Mono Amplifiers9Mono Audio Equilizer1Mono Tone Control Preamp1Mono-Preamp1Motion Detector1Motor Speed Controllers1
N
O
P
Phase Locked Loops2Phono Oscillators7PIC Programmer1PIN Diode Selector1Power Amplifiers11Power Supplies1Power Supplies - Fixed Output2Power Supplies - High Current1Power Supplies - High Voltage1Power Supplies - Test Bench1Power Supplies - Tube Radio1Power Supplies - Variable Output2Power Supply - Adjustable1Preamplifiers16Pre-Selector Tuner1Programmable2Programmable Filters1
Q
R
Radio Control Toy1Radio Filters1Radio Frequency (RF)1Radio Hash Filter1Radio Receivers25Radio Receivers - Crystal2Radio Receivers - Reflex1Radio Receivers - Regenerative17Radio Receivers - TRF7Radio Transceivers2Radio Transmitters21Radio Transmitters (AM)20Random LED Sequence Generator1Receive Converters7Receivers - Balanced Mixers1Recorder1Reflex AM Receivers1Regenerative Coil Data2Regenerative Shortwave Radio1Regenerative Transistor Radio1Regerative FET AM1Relay1Relay Light Operated1Remote Control1Remote Controlled Motor1Remote IR Detector1Remote Tuned Active Antenna1Reverberation Unit1RF Amplifiers2RF Linear Amplifiers1RF Signal Generator1RF Sine Wave Generator1RIAA Preamplifier1RIAA STEREO1Rienartz Oscillator1Robot Voice1Robotics1
S
SAW Filters1Second-Order Voltage-Controlled1Sensor1Sensors2Sensors - Infrared Tester1Shortwave Interference Trap1Shortwave Radio6Shortwave Regenerative Receiver1Signal Tracer and Injector1Signal Tracer Injector1Simple AM Radio1Simple Field Strength Meters2Simple Wire Antennas1Sine/Logic Generator1Siren2Solid-State Relay1Sound Activated Relay2Sound Activated Switch1Sound Effects8Sound Level Display1Space Age Siren1Space Ray Gun1Speaker Buzzer1Speaker Protectors2Squelch1State Variable Filters2STEREO2Stereo Amplifiers10Strobe Light1Strobe Light AC Line Powered1Strobe Lights2Super-Hetrodyne1Super-Regenerative Receiver1System5
T
Telemetry Transmitters1Telephone Interface1Telephone Projects3Telephones2Television - Transmitters1Test Equipment17TFR Regenerative Receiver1Timers3Tiny Tuner1Tone Control1Tone Control - MONO1Touch Switch1Transconductance1Transmitters - Tube1TRF AM Radio1Tube AM Modulators1Tube AM Radio9Tube AM transmitters1Tube Amplifiers2Tube Radio Power Supply1Tube Transmitters1Tuned Amplifier1Tuned Collector Oscillator1Tuner Antenna1TV Station Setup1TV VHF Transmitter1Two Transistor1
U
UHF Active Antenna1UHF Modulator Booster1UHF Oscillator1Ultrasonic Transmitter1Universal Output Chargers1Universal Timer1Unregulated Dual Voltage1Unregulated Power Supplies2Unregulated Single Voltage1Up/Down Counter1
V
Variable Output Voltage1Variable Triple Output1Variometer Crystal Radio1Vertical Antennas1VFO4VHF2VHF Beam1VHF FM Radio Receiver1VHF Loop Antenna2Vibration Sensor1Video Head Tester1Video Line Receivers1Video Transmitter - Analog1Video Transmitters8VLF Oscillator1Volume and Tone Control - MONO1VSB1VU LED Level Meter1VU Level Meters - STEREO1VXO2
W
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