This circuit from a March 1971 Radio Electronics uses a transistor to stabilize the bias current of the output transistors. The circuit is médium power.
This circuit is from 2002 documentation. It injects a signal into a power amplifier and measures the...
The integrated circuit used in this project is not the most common. The use of a crystal...
This configuration was found in an American publication from the 90s. Operators admit equivalents just...