This general purpose two-transistor complementary configuration was found in the December 1972 issue of Radio Electronics magazine. The power supply is between 6 and 12 V.
This circuit was found in a 1977 radio amateur manual. Integrated circuits are operational...
In the figure we show a configuration for a crystal-controlled overtone oscillator using a...
The transistor used is a high current Darlington, but an equivalent discrete configuration can be...