We found this circuit in the Philips integrated circuits manual of 1990. The circuit must be powered by a symmetrical high current source. The integrated circuit must have a good heat radiator.
This defrost alarm starts from an interesting idea. A small magnet on an ice stone is trapped at the...
Found in the Radio Experimenter Handbook in a 1986 edition, this circuit warns when the car's high...
This interesting emitter-coupled circuit was found in the May 1970 issue of Radio Electronics...