This dimmer for high-powered incandescent lamps was found in a 1967 General Electric manual. The circuit uses components from the era.
This circuit was found in documentation from the 80s. It is based on unijunction transistors not...
The speed of the motor connected to this circuit depends on the amount of light that strikes the...
This sensor circuit from a 1967 Ferranti documentation uses components from the era. The circuit...