This circuit is from a Radio Electronics magazine from August 1990. The circuit uses components from the time and is suitable for measurements in alternating current.
This circuit is from an old American documentation. The circuit generates 20 to 200 ms steps for...
This circuit, found in American documentation, works as a voltage doubler, enabling the supply of a...
This circuit was taken from a Popular Electronics from January 1967. Transistors are from the...