This circuit was found in a 70s documentation. The transistor is from that time. L1 has 4 turns of wire 20 in the form of 3/32 inches and L1 has 10 turns of the same wire,
May 2017 - Mouser Electronics supplies a wide range of sources for LEDs from Mean Well with inputs for...
This Power supply is intended to Power small loads with currents up to 30 mA. The voltage depends...
This simple power supply is not regulated and the output current depends on the transformer. It...