This source with two symmetrical output voltages was found in 90s Radio Electronics. The 22 V output has a maximum current of 300 mA and the 5 V output has a maximum current of 4 A.
This conventional window detector circuit was found in a 1995 documentation. The trigger points, that...
Found in a Radio Electronics store from the 90s, this circuit is for cars of that era. The circuit...
This old circuit excites lamps but can be modified to excite high-power LEDs or other loads...