This is a circuit suggested by Linear Technology in a 1980s documentation. The integrated circuit is from the era. Observe the input and output voltage.
This circuit was obtained in an American publication of 1970, making use of components of the...
This circuit is from a 1965 General Electric hobby manual. The circuit can be assembled with...
This circuit is from a 1967 RCA documentation. Components can be replaced with modern equivalents. The...