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 50% duty cycle configuration was found in a Popular Electronics from the 1990s. The operating...
We found this circuit in an early American 80's documentation. We note that the first gate of the...
This circuit was found in the Linear Technology Applications of 1997. The circuit uses common...