Solid thermionic cathodes

Introduced: September 1968

Last revised: January 2006

Full Title

Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps > Main electrodes > Solid thermionic cathodes

Classification Context

Section:: ELECTRICITY
Class:: ELECTRIC ELEMENTS
Subclass:: ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

3 direct subcodes

Child Classifications

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H01J 1/14 characterised by the material
H01J 1/15 Cathodes heated directly by an electric current
H01J 1/2 Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment