Found in a General Electric documentation from 1970, this circuit consists of a relaxation oscillator that uses a transistor from that time.
This project was published in the April 1989 issue of Radio Electronics magazine. It drives LEDs...
This circuit was found in a 1965 magazine. The circuit is powered by a single battery and uses...
This circuit was obtained in a Motorola manual from 1978. We can use any triac and the coupler with...