US PATENT SUBCLASS 330 / 89
.~.~.~ Between adjacent stages

Current as of: June, 1999
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330 /   HD   AMPLIFIERS

75  DF  SIGNAL FEEDBACK {20}
87  DF  .~ Cathode impedance feedback {4}
88  DF  .~.~ Cascade amplifier stages with cathode-cathode feedback {1}
89.~.~.~ Between adjacent stages

DEFINITION

Classification: 330/89

(under subclass 88) Subject matter wherein the cathode-cathode feedback is between adjacent stages.

(1) Note. Where there is cathode-to-cathode coupling of adjacent cascaded stages classification is in subclass 89 regardless of whether signal feedback is indicated or not.