Found in an American documentation from 1969, this circuit makes use of a pair of matched transistors of the time. The circuit supports modern equivalent components.
This circuit is from a manual based on information from Japanese components from 1981. The power...
This circuit was obtained in a 1995 documentation and has a simple configuration using only common...
This circuit is from an English publication of 1982. The bipolar transistor can be a BC548 and the...