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.
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We...
This is a configuration much explored by assemblers, being found on this site in dozens of similar...
We find this circuit in an American 80's documentation. It makes use of IC sensor which is mounted...