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PCE
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DIFF Subgroup
H03F 1/13

in discharge-tube amplifiers

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements > Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements > by use of attenuating means > in discharge-tube amplifiers

CPC:

Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements > Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements (wide-band amplifiers with inter-stage coupling networks incorporating these impedances H03F1/42) > by use of attenuating means > in discharge-tube amplifiers

No child classifications to compare. This is a leaf node in both IPC and CPC.