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.