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Publication of JPS5047546ApublicationCriticalpatent/JPS5047546A/ja
H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
H03F3/45—Differential amplifiers
H03F3/45071—Differential amplifiers with semiconductor devices only
H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier