Two transistors on a regenerative switch are used to trigger a triac. This circuit is from the RCA Power Circuits manual. Transistors admit equivalents.
We found this circuit in the June 1988 Radio Electronics magazine. The power supply must be...
This circuit is based on the voltage reference that is uncommon today MC1403. Equivalents can be...
May 2016 - It can be obtained from Mouser Electronics new connectors Ultra-Fit ™ series from Nikex for...