This good power amplifier, a few tens of watts, is part of an article in the December 1972 Radio Electronics magazine. The power supply must be symmetrical with at least 3 A.
Using the 555 this circuit was found in a Popular Electronics from the 90's. The circuit directly...
This circuit was found in an English publication from 1995. The circuit admits other operational...
The maximum current of this circuit can reach 500 mA with BD136 and 1 A with TIP32. The circuit...