Accession Number : ADD013367

Title :   Integral Grid/Cathode for Vacuum Tubes.

Descriptive Note : Patent, Filed 6 Mar 86, patented 14 Jul 87,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Buck, Erik S

Report Date : 14 Jul 1987

Pagination or Media Count : 6

Abstract : The structure is material such as a ceramic in the form of a bundle of open cells, a 'honeycomb', with the shape of the cells corresponding to the shape of the openings desired in the grid. The cathode is formed in the cells, rather than adding the grid to a ready-made cathode. The grid is formed by coating the end of the cell walls with a conducting material (metal and/or carbon). The surface of the cathode is suitably recessed from the grid.

Descriptors :   *PATENTS, *CATHODES, *CELL WALL, *ELECTRON TUBES, *GRIDS, BUNDLES, CARBON, CELLS, COATINGS, OPENINGS, SHAPE, SURFACES

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE