This simple source uses two 2N3055 transistors that must be equipped with good heat sinks. The source has no protection, only an input fuse. The diodes are for 5 A x 50 V or more.
We found this circuit in an Electronic Engineering from the 90s. It applies to any logical family....
This circuit operates at a frequency of 80 KHz and modulation up to 60 kHz. The circuit is from...
This small unregulated variable power supply was found in an American book from the 60's. The...