This circuit from a 1968 Motorola documentation provides a 120 AC output with 60 Hz from a 48 V DC input. The circuit uses transformers and coils of commercial types of the time.
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...