Electron gun for a cathode ray tube

Details Electron gun for a cathode ray tube Electron gun for a cathode ray tube

H - Electricity

04

N

355/6

H04N 9/20 (2006.01)

Patent

CA 1111966

ABSTRACT OF THE DISCLOSURE An electron gun used in a cathode ray tube, for example, color television picture tube, is disclosed. The electron gun has a plurality of electrodes aligned in one direction along an axis of a neck portion of the cathode ray tube. Each of the electrodes is supplied with a suitable potential for focusing and accelerating an electron beam derived by a cathode. A resistance element which comprises a ceramic substrate coated with a layer of resistive material is provided along and adjacent to the electrodes in the cathode ray tube. One end of the resistance element is electrically connected to the anode potential, and another end is connected to a stem lead pin which is at a substantially low enough potential to avoid mutual ele- tric discharge between stem lead pins. Suitable potential for the selective electrodes is derived from intermediate taps of the resistor. - 1 -

295638

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