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.
This three-transistor amplifier uses a JFET at the input to increase the input impedance. The...
This two-transistor MW radio was found in a publication from 1958. It uses one of the oldest type...
This simple circuit was suggested by the Electronics Handbook Volume XIII 1993. LED D1 emits light for...