In the figure we have an IF amplifier step using a MOSFET. The circuit was found in a 1980s documentation, intended for FM receivers of the time.
Found in a 90s Popular Electronics, this circuit is based on a uA739, an unusual component today....
Exciting a sequential circuit with the output of a stereo we can make a set of lamps run at a...
This excellent amplifier with complementary symmetry output stage was taken from one of my audio...