Patent classifications
H
ELECTRICITY
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H03
ELECTRONIC CIRCUITRY
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H03F
AMPLIFIERS
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2203/00
Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
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H03F2203/45
Indexing scheme relating to differential amplifiers
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H03F2203/45006
the addition of two signals being made by two emitter or source coupled followers
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