We found this circuit in an old documentation. Its purpose is to turn on warning lights when the vehicle in a garage touches or passes a sensing bar preventing it from hitting the wall.
This circuit is intended for the production of an audible signal from the capture of a continuous...
This circuit was obtained from a 1962 magazine. It can still be mounted to be powered from 6 V...
ROHM Numeric Displays ROHM sells through Mouser Electronics its common anode and cathode numerical...