This voltage inverter circuit was found in a Mullard transistor manual from 1960. Information on the transformers was given. Transistors are germanium types.
Motors of up to 3 or 4 A can be controlled with this PWM circuit. The circuit can be used with 5 to...
The current of this source is 200 mA at the most, and the output depends on the zener that may...
The integrated circuit used in this regulator is quite old. Its 1970s casing is still made of...