This dimmer for incandescent lamps was obtained from an American 1990s documentation. The circuit accepts triac-like loads that can be virtually any type. Triac must be fitted with a heat sink.
The circuit in the figure is suggested by Linear Technologies (www.linear.com) and consists of a...
This circuit was found in an American publication from 1968. The transistors are from the time,...
Found in a 1990 Hobbyst Handbook this circuit has an output power of a few tens of watts and...