We found this circuit in the Linear Applications Handbook by National Semiconductor. The circuit is from 1994, but it can be made with more modern equivalent components.
The circuit shown is an AND gate with three inputs using a comparator of the four existing in an...
This circuit, which can only be used with incandescent lamps, is adapted to the common wall...
This passive circuit was found in the March 1995 issue of Elexctonics Now magazine. The circuit is for...