This 1968 documentation circuit uses a relay to control loads up to 1 kW (depends on relay contacts). The supply voltage depends on the relay.
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...