US PATENT SUBCLASS 330 / 163
.~.~ D.C. coupling

Current as of: June, 1999
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330 /   HD   AMPLIFIERS

157  DF  INTERSTAGE COUPLING {11}
162  DF  .~ Output coupling from grid {1}
163.~.~ D.C. coupling

DEFINITION

Classification: 330/163

(under subclass 162) Subject matter wherein the coupling has a D.C.. conductive signal path from the grid or from between the grid and anode of the preceding of the two cascaded amplifying devices (of the vacuum tube type) to the following device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

198, for D.C.. output coupling which may involve coupling from a grid or from between a grid and the anode.