The transformer in this power supply can have a secondary winding from 1 to 15 A of current. Voltage is given by the zener diode. Transistor 2N3055 must be mounted on a good heat radiator.
We found this configuration in a Radio Electronics from 1989. The circuit can be designed with...
This interesting configuration was found in a 1965s Electronic Design. It makes use of components of...
This circuit is from old American documentation intended to trigger the flash of a camera flash with...