US PATENT SUBCLASS 330 / 195
.~ Transformer coupled


Current as of: June, 1999
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330 /   HD   AMPLIFIERS

192  DF  OUTPUT NETWORKS {3}
195.~ Transformer coupled {2}
196  DF  .~.~> With additional impedance connected to "P" or "S" circuit
197  DF  .~.~> With transformer structure


DEFINITION

Classification: 330/195

(under subclass 192) Subject matter in which the output circuit network includes a transformer for coupling the signal from the amplifier device to the load.

SEE OR SEARCH THIS CLASS, SUBCLASS:

120, and 122, for push-pull amplifiers which may involve transformer output coupling.

154, for transformer coupling involved in plural diverse stages of a cascaded amplifier.

165+, involving interstage transformer coupling.

188+, for input transformer coupling.

SEE OR SEARCH CLASS 333, Wave Transmission Lines and Networks,

177+, for wave transmission transformer coupling circuits in general.

334, Tuners,

59+, and 61+ for tuners having a transformer in the resonant circuit.