This source for 50 W amplifiers per channel was found in 1967 Delco documentation. Transistors are from that time, difficult to obtain today.
This circuit is from an old Mullard transistor manual. The diodes are made of germanium and the...
Similar circuits can be found on this site. This is from an 80's American documentation. The...
We found this circuit in an old American documentation. The table gives the values of the...