Transistor breakdown (CB21393E)

This inverse transistor breakdown circuit was found in a 1967 documentation. It applies to modern components.

Basic operational amplifier (CB24225E)
This circuit is suitable for low impedance sources, using an operational amplifier. The gain is...
3W Stage (CB23740E)
This circuit is a 3 W power stage with transistor of the time. The circuit is from a Radio...
Sinusoidal to Square Converter (CB5105E)
This circuit, which can be used as a shield, was found in old documentation. The circuit must be...