This circuit was found in a Delco 1965 publication. Transistors may be current equivalents according to the desired output voltage and current.
In the figure we have the way to control a triac with a low current and low voltage switch,...
This trigger circuit was found in old European documentation, but it can be implemented with...
May 2017 - The new ROHM SFR series anti-sulfur resistors can now be obtained from Mouser...