This circuit was found in the June 1996 issue of Electronics Now. Integrated circuits must be equipped with heat sinks, and the maximum current is 1 A.
The integrated circuit can be replaced by more modern operational amplifiers like the 741. The...
We found this circuit in the August 1970 issue of Radio Elecronics magazine. It uses the CA3018...
The configuration shown in the figure is quite simple and can be used to activate a signaling LED...