Regulator LM317 (CB22475E)
Digital amplifier 7400 (CB22432E)
Debouncer with the 7400 (CB22410E)
FET Colpitts Oscillator (CB22393E)
Hearing aid amplifier (CB22355E)
CW pickup (CB22325E)
Pulse counter (CB22301E)
100 kHz Oscillator (CB22256E)
Transistorized receiver (CB22218E)
Cells and Batteries Test (CB22141E)
Variable Peak Detector (CB22130E)
Light control (CB22123E)
Emergency light (CB22084E)
Audio alarm timer (CB22063E)
Headphone Preamplifier (CB22042E)
Selectable Gain Preamplifier (CB23999E)
Tachometer (CB23955E)
Dip Oscillator (CB23884E)
Detector with tunnel diode (CB23850E)
Power supply with zener (CB23739E)
Radio without energy supply (CB23729E)
1-Transistor Ignition (CB23647E)
Preamplifier for tubes (CB23605E)
Self-powered receiver (CB23596E)
Industrial alarm (CB23560E)
High voltage pulse generator (CB22480E)
Medium wave transmitter (CB22502E)
Power supply with voltage tripler (CB22342E)
Interval for windshield wiper (CB22188E)
60's crystal radio (CB22171E)

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