This circuit, which appears elsewhere on this website, was obtained from 1967 General Electric documentation. All semiconductors used are uncommon today.
This dimmer for incandescent lamps was obtained from an American 1990s documentation. The circuit...
This circuit can be used in physics experiments, in ionization and in several other applications. The...
This experimental AM radio circuit was found in a 1979 English magazine. It can be fitted with a...