This 5 V power supply was found in the January 1992 issue of Radio Electronics magazine. The integrated circuit must be equipped with a heat sink and the current is 1 A.
This circuit was suggested by Motorola in a 1980s publication. It is based on a PUT that is not a...
Found in American documentation from the 70s, this circuit uses components of the time, uncommon...
This is an old circuit, but totally viable and with excellent sound quality. BD transistors must...