This circuit uses only transistors and was found in a 2003 documentation. Transistor 2N3055 must be mounted on a heat sink and the voltage is set to R10.
Although MOSFETs of the type indicated are not very easy to obtain, one can have the circuit as a...
This power source takes advantage of an old valve transformer that is no longer used and can...
Found in 90s Popular Electronics, this circuit fires a load through a MOSFET from an audio signal...