Voltage doubler power supply (CB8166E)

Using a 12 V transformer, this unit can provide a much higher output voltage. The circuit is from a 90’s Popular Electronics.

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Audio Oscillator (CB10844E)
This circuit was obtained in a 1979 101 Electronics Projects. The circuit can be assembled easily,...
Hysteresis compensator (CB7980E)
Suggested by a 90's Linear Databook, this circuit compensates for capacitor hysteresis. The main...
Analog Isolator (CB13571E)
This circuit serves to isolate analog signals, for example, audio signals in a secure link...