Found in American documentation from the 1990s, this circuit has active cycle control. The basic components are given along with the diagram. Transistors are general purpose.
With this circuit it is possible to obtain a voltage of 24 V using a 12 V regulator. The maximum...
We found this circuit in a 1965 publication by General Electric. The zener is 8.2 V x 1 W and the...
This circuit was found in a Hands On Electronics from the 90s. It turns on an LED to indicate that...