Vacuum electron device having directly-heated...

Details Vacuum electron device having directly-heated... Vacuum electron device having directly-heated...

H - Electricity

01

J

313/161

H01J 1/94 (2006.01) H01J 19/48 (2006.01) H01J 29/04 (2006.01)

Patent

CA 1049086

VACUUM ELECTRON DEVICE HAVING DIRECTLY-HEATED MATRIX-CATHODE-HEATER ASSEMBLY ABSTRACT OF THE DISCLOSURE Device comprises an evacuated envelope and a heater-cathode assembly including an electrically-conductive, at least two electrically-resistive legs attached directly to spaced positions on the body. Electric current flowing through the legs and body generates heat in the legs, which heat is thermally conducted to the body. The parts are proportioned to reduce radiation losses by minimizing surface area. The structure reduces bulk and mass to permit short heating-up times. - 1 -

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