This 12 V to 110 V inverter with 100 W was found in a 1977 Signetics manual. The transformer must be rated according to the desired power and the output transistors admit equivalents.
This circuit trips when a negative pulse is applied to its input or when the voltage drops below a...
This is an old 1988 circuit consisting of a timer or time control for exposing silk-screen arrays. The...
This circuit was taken from an old American documentation. It can be built with modern op amps. The...