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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H03G 5/18

in untuned amplifiers

Introduced: September 1968

Full Title

Tone control or bandwidth control in amplifiers > Automatic control > in untuned amplifiers

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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  • H03G 5/20 having discharge tubes IPC+CPC Available in IPC and CPC
  • H03G 5/22 having semiconductor devices IPC+CPC Available in IPC and CPC