This circuit is from a Mallory 1968’s documentation. The integrated circuit is of the time and the transistor admits equivalents.
In this circuit the output current is limited by R3. For a 300 mA current, R3 must have 12 Ω. For...
November 2016 - Bourns RLB1112V4 series radial inductors are available for immediate supply from...
This 10-step voltage indicator was obtained from a 1980s publication. The circuit is based on an...