Using a three or more terminal semiconductive device as the final control device:
(under subclass 304) Subject matter wherein the final control device within the self-regulating system is a transistor or semiconductor controlled rectifier.
SEE OR SEARCH THIS CLASS, SUBCLASS:
223, for shunt regulators.
265, for output level responsive devices.
349, for external or operator controlled devices, all using three or more terminal semiconductive devices as final control devices.
SEE OR SEARCH CLASS
219, Electric Heating, 501, for devices of this type having electric heating devices as a load.
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
438+, and 530+ for subcombinations of systems using semiconductive devices as final control devices.
