DIFF Subgroup
H03F 1/33 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 non-linear distortion > 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 non-linear distortion (by negative feedback H03F1/34) > in discharge-tube amplifiers
No child classifications to compare. This is a leaf node in both IPC and CPC.