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.
I found This circuit is in a documentation of transistors from 1958. It uses germanium PNP...
This simple circuit consists of an oscillator that can be activated both by the action of NO and...
The original 1986 project was designed to turn a television on and off using a light fixture...