This circuit was obtained from an 80's Radio Electronics. The circuit decodes “scrambled” or sinusoidal encoded signals by providing an audio signal at the output.
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...