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PCE
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DIFF Subgroup
H01J 19/78

One or more circuit elements structurally associated with the tube

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Details of vacuum tubes of the types covered by group > One or more circuit elements structurally associated with the tube

CPC:

Details of vacuum tubes of the types covered by group H01J21/00 > One or more circuit elements structurally associated with the tube

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

Child Classifications

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  • H01J 19/80 Structurally associated resonator having distributed inductance and capacitance IPC+CPC Available in IPC and CPC