This old configuration of an audio amplifier has a push-pull two-transistor output stage. Output power is low and the critical components are the transformers. The circuit was found in an 1958’s publication.
This circuit appears in various parts of this site and this section, with diverse origins. This is from...
This circuit, called Kames Dandy, can mix signals from a wide range of frequencies and is...
In the figure we have the way to obtain an adjustable constant current source of 2 mA. The...