This General Electric circuit was found in a 1964 documentation. The circuit triggers a relay when the sensor is activated. Trigger adjustment is done in a trimpot.
This circuit was found in an American 1980s documentation. The components are current but most...
This simple timer for incandescent lamps or other non-electronic charges uses a triac as a control...
Found in a Radio Electronics store from the 90s, this circuit acts on the alternator. The circuit...