Using the CA3140 in the figure we have a comparator that goes low in the window voltage space. The circuit was found in June 1986 Radio Electronics magazine.
This circuit, suggested by a 1975 documentation, detects an electrical discharge in a storm by...
This flip-flop or bistable multivibrator is triggered by a signal applied to the base of the...
The purpose of this heat detector is to find hot spots on a board or other locations. The sensor is...