(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.