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 digital mixer uses CMOS integrated circuits. The circuit was published by us in a magazine...
This simple circuit with a neon lamp is from a documentation from the 70s. It indicates whether...
This fixed current source uses a Norton LM3900 amplifier. The maximum current depends on the...