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.
Found in American documentation, this amplifier stage has unit gain and a high input impedance. It...
This circuit was found in an American documentation on transistors from the 60's. The transistor is made...
This circuit was suggested by Philips in 1967 documentation. The circuit receives modulated light and has...