The RCA integrated circuit used in this control is uncommon today. The circuit is from an Electronics Now from July 1995. The sensor determines the value of the adjustment potentiometer.
This circuit is from a 1980s documentation, but the configuration can be applied to most modern...
Found in General Electric documentation from 1967, this circuit makes use of an unusual...
Although it is a common configuration today, these circuits were taken from an old publication. The...