Latching is a fastening, as for a door or gate, typically
consisting of a bar that fits into a notch or slot and is lifted from
either side by a lever or string. A continuity tester is an item of electrical test equipment used to determine. This circuit detects brief shorts or opens. When S2 is in the up position, the circuit indicates if there is or was continuity by lighting LED1. U1A and U1B are connected as an R-S flip-flop. SI resets the tester. When S2 is in the down position, a momentary interruption in continuity will light LED1. This tester is good for detecting intermittent shorts or opens.
Latching Continuity Checker Circuit Diagram
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