This circuit uses a wire potentiometer, but the current is much more intense in the control thanks to the 2N3055 which must be mounted on a heat sink.
This circuit is more elaborate than the previous one. It was obtained from an 80s circuit manual. The...
This is the circuit of an RCA Dimmer sold in 1967. With it it is possible to control a load up to...
This circuit uses a resonant reed switch at the trigger frequency. The circuit is from General...