Indirectly heated oxide cathode for cathode ray tubes

Details Indirectly heated oxide cathode for cathode ray tubes Indirectly heated oxide cathode for cathode ray tubes

H - Electricity

01

J

313/183, 313/35.

H01J 29/04 (2006.01) H01J 1/15 (2006.01) H01J 1/20 (2006.01)

Patent

CA 1181123

12 ABSTRACT: An oxide cathode comprising a metal base sub- stantially consisting of titanium and a heating element for heating the base, on which base a porous layer com- prising an alkaline earth metal oxide is provided. This enables a comparatively low operating temperature and/or a short warming up time and/or a small supplied power to be used.

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