Cathode-ray tube

Details Cathode-ray tube Cathode-ray tube

H - Electricity

01

J

313/35.14

H01J 29/48 (2006.01) H01J 29/04 (2006.01) H01J 29/50 (2006.01)

Patent

CA 1187541

11 ABSTRACT: A cathode-ray tube, for example, a camera tube or a display tube, comprising an electron gun the cathode unit of which comprises a cathode shank which is sus- pended coaxially in an aperture in an assembly plate extending perpendicularly to the axis of the electron gun. Such a cathode unit has a metal supporting plate which is positioned accurately with respect to the assem- bly plate. The assembly plate and the supporting plate extend. Glass plugs connect the assembly plate and supporting pins and supporting plate together. Starting from the assembly plate as a reference plate, a very accurate cathode unit can be obtained which can be posi- tioned very accurately in the tube.

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