US PATENT SUBCLASS 330 / 81
.~ At least one push-pull signal stage
Current as of:
June, 1999
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330 /
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AMPLIFIERS
75
DF
SIGNAL FEEDBACK
{20}
81
.~ At least one push-pull signal stage {2}
82
DF
.~.~
> Positive and negative feedback
83
DF
.~.~
> Including D.C. path for signal feedback
DEFINITION
Classification: 330/81
(under subclass 75) Subject matter including at least one stage of push-pull signal amplification.
(1) Note. For the definition of a stage of push-pull amplification see the class definition, Glossary.
SEE OR SEARCH THIS CLASS, SUBCLASS:
77, for amplifiers having at least one push-pull stage and including feedback means to compensate for inter-electrode impedances.
118, for amplifiers having at least one push-pull stage. See the search notes thereunder. See also (1) Note above.
