This high-power amplifier with only 4 integrated circuits was found in the 1990 special issue of Radio Electronics Experimenter magazine. The circuit reaches 100 W per channel.
This amplifier with very high input resistance has variable gain and must be powered by a...
Found in an Electronics Now from the 1980s, this circuit is based on grid leakage current for...
Found in 1967 General Electric documentation this circuit uses a PUT and a diac to generate 1 kHz...