Found in a Radio Electronics store from the 90s, this circuit is for cars of that era. The circuit uses a 2N3055 that must be equipped with a heat sink.
This amplifier with the RCA CA3018 integrated circuit was found in the August 1970 issue of Radio...
This circuit generates sinusoidal signals that depend on the input oscillator. The circuit is from...
This fast-acting circuit uses any phototransistor as a sensor. The circuit drives a 30 V relay, but...