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.
We found this circuit in factory documentation from the 70s. The operational amplifier is from...
This amplifier, of excellent quality, provides a power of 40 W IHF, or 22 W RMS, in a load of 8...
This circuit produces an intermittent ring tone being triggered directly by the telephone line. However,...