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 circuit found in a European publication from the 1980s, is based on PLL 566. The frequencies...
This circuit, which can be used safely, has been obtained in a 1987 documentation. It consists of a...
This circuit detects when a powered circuit suffers a malfunction, lighting an LED. The supply...