The circuit is of the Motorola Linear Databook of 1990. The power source must be symmetrical and the characteristics of the circuit are given next to the diagram.
This circuit, which can serve as a reference for restorations, was found in the October 1989 issue...
We found this circuit in a publication for radio amateurs of 1976. The operational amplifier is a...
This dual-LED circuit indicates three signal levels. It was found in the January 1996 issue of...