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Inverters form three-phase VCO
Car auto-dimmer
74LS192 Computer controller 4 DC motors
Lm318 Microphone preamplifier with tone control circuit and explanation
Schematic Diagram FM Transmitter 4Watt
usb audio interface based dac pcm2902
light dark sensor with relay circuit
Digital Voltmeter of your Own
100W amplifier circuit
Oscillator circuits
Spark-Gap Tesla Transformer
Pulse signal generating circuit and display