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.
This circuit can be applied to several logics. The circuit is from an Electronics Now from the...
This circuit was found in a Popular Electronics of the 1990s. The sensor is a rotating mechanical...
The transistor in this circuit can be the BC558 and the capacitors must be ceramic. Crystals from...