DIFF Subgroup
H03F 1/02 Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
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 raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
Of 2 combined children, 1 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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