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PCE
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DIFF Subgroup
H03F 1/36

in discharge-tube amplifiers

Introduced: September 1968

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 > Negative-feedback-circuit arrangements with or without positive feedback > in discharge-tube amplifiers

CPC:

Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements > Negative-feedback-circuit arrangements with or without positive feedback (H03F1/02 - H03F1/30, H03F1/38 - H03F1/50, H03F3/50 take precedence ) > in discharge-tube amplifiers

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