We found this circuit in an old American documentation, but the circuit can still be assembled with ease as the used components are still available. MOSFETs admit equivalents.
Found in a 1967 Delco documentation, this circuit can deliver power from 40 to 50 W at 8-ohm load....
This circuit is from a factory documentation (National Semiconductor) of the 80's. The power...
This 1968 Mallory circuit uses an uncommon integrated circuit today. The circuit has a 30 to...