Found in a 1966’s General Electric documentation, this circuit uses a triple diode from the time. The output current is 5 mA. It serves as a voltage reference.
This circuit was originally intended for reading movie soundtracks. The circuit is from 1967 and...
This circuit, which uses only transistors as active components, was found in a 1987 documentation. The...
This circuit was found in the April 1993 Electronics Now magazine. With it, it is possible to...