This circuit was suggested by General Electric / RCA in a 1980s documentation. The components are of the time and the circuit must be powered by symmetrical source.
This circuit is from a 1968 Electronic Design. The components are from the era and the operating...
ON Semiconductor CMOS Operational Amplifiers Mouser Electronics announces the availability of ON...
We find this circuit in an American 1980s documentation. It triggers an alarm in the event of a...