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.
Found in a 1968 documentation, this circuit provides symmetrical voltages determined by component...
Found in a 1969 Electronics World, this circuit is intended for amplifying analog cable TV...
This circuit is from an old documentation. The integrated circuit can be replaced by a modern...