DIFF Subgroup
H03F 3/30 Single-ended push-pull amplifiers ; Phase-splitters therefor
Introduced: September 1968
Title
Titles differ between systems:
IPC: Single-ended push-pull amplifiers; Phase-splitters therefor
CPC: Single-ended push-pull amplifiers ; Phase-splitters therefor
Full Title
Full titles differ between systems:
IPC:
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements > Single-ended push-pull amplifiers; Phase-splitters therefor
CPC:
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements > Single-ended push-pull amplifiers ; Phase-splitters therefor
CPC subdivides this area 5x more granularly than IPC with 5 additional codes.
5 codes are CPC-only extensions, 1 exist only in IPC.
Child Classifications
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