It is a 13.8 V x 10 A regulator obtained in a 2008 documentation. The 2N3055 transistors must be mounted in excellent heat sinks and the voltage is adjusted in the trimpot.
This circuit was described in an article in Radio Electronics magazine in September 1983. The...
The circuit found in a documentation from the 90s allows capacitance measurements to be carried out...
We found this protection circuit for the power supply in a 1992 documentation. This circuit has...