This power supply was obtained from an Electronic Design from the 90's. The circuit applies to other 3-terminal regulators. The maximum output current is 200 mA.
With this circuit, from an American documentation from 1976, it is possible to measure...
This power supply for model railroad was found in a February 1961 Radio Electronics Magazine. The...
This circuit was found in a Radio Electronics from June 1967. The regulator is suitable for power...