US PATENT SUBCLASS 455 / 253.1
.~.~.~.~ Plural stages controlled with plates, screen grids, or cathodes connected in parallel

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

130  DF  RECEIVER OR ANALOG MODULATED SIGNAL FREQUENCY CONVERTER {24}
230  DF  .~ Local control of receiver operation {7}
232.1  DF  .~.~ Gain control {2}
234.1  DF  .~.~.~ Automatic {15}
253.1.~.~.~.~ Plural stages controlled with plates, screen grids, or cathodes connected in parallel

DEFINITION

Classification: 455/253.1

Plural stages controlled with plates, screen grids, or cathodes connected in parallel:

(under subclass 234.1) Subject matter wherein the receiver has a plurality of stages which have vacuum tubes which have plates, cathodes, or screen grids connected in parallel to an automatic gain, level, or volume control voltage.