DIFF Subgroup
H03F 1/26 Modifications of amplifiers to reduce influence of noise generated by amplifying elements
Introduced: September 1968
Full Title
Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements > Modifications of amplifiers to reduce influence of noise generated by amplifying elements
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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