This 12.5 W quasi-complementary amplifier was found in a 1969 General Electric publication. Note the high supply voltage. Transistors are common types at the time.
May 2017 - Qorvo QPL9065 low-noise amplifiers can be purchased from Mouser Electronics for a...
This amplifier, from an Argentine publication from the 1970s, uses germanium transistors with...
We found this circuit in a Radio Electronics issue from August 1970. The circuit drives a 12 V...