Rugged Quick-Heating Electron Tubes.
DEPARTMENT OF THE ARMY WASHINGTON D C
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The patent consists of a rugged combustion-heated electron tube comprising a metallic conically-shaped anode structure a metallic conically-shaped cathode structure insulatedly and coaxially mounted in spaced relationship to said anode structure a metallic conically-shaped grid structure insulatedly and coaxially mounted in spaced relationship between said anode structure and said cathode structure first and second annular insulating spacer-seals separating said anode structure from said grid structure and said grid structure from said cathode structure, said spacer-seals in combination with said anode structure and said cathode structure providing a hermetically-sealed envelope containing said grid structure and a combustible material mounted exteriorly of said envelope in proximity to said cathode structure, said combustible material being adapted to heat said cathode structure to an operating temperature.
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