Found in an American publication from the 1980s, this circuit can be found in commercial sound equipment of the time. The list with the component values is given next to the diagram.
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...