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.
The control of the triac in this power flasher for incandescent lamps is made by a relaxation...
This series motor control circuit was obtained from an old manual from the 80's. The SCRs must be...
This circuit, from a 1978 publication, uses a germanium power PNP, but the BD135 can be used for 6...