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.
We found this circuit in a 1985 documentation. The 4-LED bargraph is excited by an input voltage. The...
This interesting circuit was found in a French publication from the 1980s. The circuit indicates when a...
We have in the diagram another way to make the null adjustment of an operational amplifier. In...