Found in 1966 General Electric documentation, this circuit uses solicon unilateral switches (SUS) switches that are uncommon components today.
Also suitable for use as a noisy alarm, this Morse Code or telegraph practice oscillator was found...
This circuit makes simultaneous control of two up to 150 W incandescent lamps. The circuit is half wave...
This circuit was found in an old documentation from Europe. The integrated circuit used is...