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.
T Found in a 1992 Popular Electronics, this sophisticated circuit uses two speakers on a different...
We found this circuit in a 1995 documentation. It is a two-channel preamplifier for supplying a...
This timer was found in a 1980 publication. With the BC548 for Q1, an 8-ohm speaker with 6 V power...