This power supply was found in the same 1990 special issue of Radio Electronics Experimenter magazine that describes an amplifier of up to 100 W per channel with the LM12.
We found this circuit in the Linear Applications Handbook by National Semiconductor. The circuit uses...
This circuit was found in an American documentation from 1977. The circuit can be implemented with modern...
In the original circuit a 40431 quadrac is used, but this is not a common component today....