This power supply was found in the September 1989 issue of Radio Electronics magazine. The 2N3055 must be equipped with a heat sink.
January 2017 - Omron G7L-x relays for PCB mounting can now be purchased from Mouser Electronics. These...
This General Electric circuit was found in a 1964 documentation. The circuit triggers a relay when...
This simple two position dimmer is suitable for low wattage incandescent lamps. The diode can be...