![]() H03F2203/45- Indexing scheme relating to differential amplifiers.H03F2203/00- Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00.H03F2200/78- A comparator being used in a controlling circuit of an amplifier.H03F2200/00- Indexing scheme relating to amplifiers.H03F3/45475- Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit.H03F3/45076- Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier.H03F3/45071- Differential amplifiers with semiconductor devices only. ![]()
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