Found in an American documentation from the 90's, this 1.5 A power supply provides 1.5 to 22 V of output. The integrated circuit must be mounted on a heat sink.
The 556 consists of a double integrated circuit 555, which can be replaced by them in this...
We found this circuit in a Radio Electronics from January 1967. The SCR is already the C106, which...
This circuit is from American documentation from 1970. It can be designed with a BC558 and for the...