830 W Dimmer (CB7185E)

This dimmer for high-powered incandescent lamps was found in a 1967 General Electric manual. The circuit uses components from the era.

| Clique na imagem para ampliar |

FET Voltmeter (CB13268E)
This traditional high sensitivity voltmeter circuit using a FET can employ the MPF102 or BF245 in its...
Missing phase protection (CB8386E)
Indicated for the protection of three-phase systems, this circuit was found in an American...
AND gate with relays (CB21029E)
Found in an American brochure from the 90s, this circuit shows how we can implement a 4-input AND...