The circuit is from a June 1995 Electronics Now. The relay is power-dependent and both R1 and R2 should have close resistances in operation.
This circuit can be used to add a delay to a logic signal as shown by the input and output...
This circuit, which appears from other sources on this site, converts a voltage into a current....
This circuit was suggested by General Electric in 1969 documentation. It provides a maximum output of...