Found in a 1968 EEE, this switch controls a high-power load from an audio signal. The current is determined by the type of SCR.
This circuit was obtained in a 1982 English magazine. The purpose of this circuit is to interface...
The simple touch of the fingers on a sensor causes this circuit to drive a motor that goes into...
A touch in this circuit turns-on the lamp or the relay. Power supply is according the lamp or...