We found this circuit in a 1965 General Electric manual. The controlled load depends on the Triac and the 100 uF capacitor delay time.
We found this circuit in a 1980s documentation. The circuit uses general purpose transistors,...
This circuit, with adjusted sensitivity, can use common general-purpose transistors. The circuit is...
This circuit, from the On Semiconductor thyristor manual, is suitable for incandescent lamps or...