Found in Radio Electronics this circuit uses a fotodiac to drive a triac. The circuit can use equivalent triacs.
Found in a 1960s RCA manual, this circuit uses components from the era. For the indicated circuit R1 is...
Another dimmer circuit. This dimmer for incandescent lamps was found in the July 1970 issue of...
This shield or interface makes it possible to control power loads connected to the power grid from...