The circuit is from a June 1995 Electronics Now. The relay is power-dependent and both R1 and R2 should have close resistances in operation.
The input of this regulator can be between 7 and 12 V and the output is 5 V. The circuit is from...
This circuit uses common components at the time of its publication in the 1980s. The circuit can be...
August 2016 –It can be purchased from Mouser Electronics the new converters BD7F100 and BD7F200...