This circuit for the power grid was found in the June 1969 Radio Electronics magazine. The SCR and diodes are rated according to the power of the controlled load.
Although it is a common configuration today, this circuit was taken from an old publication. The...
This circuit was found in an old publication from 1989 but can still be assembled today with BD135...
This circuit was suggested by Popular Elecronics from the 90's. The circuit has high input...