Magnetizing apparatus and method for use in correcting color...

Details Magnetizing apparatus and method for use in correcting color... Magnetizing apparatus and method for use in correcting color...

H - Electricity

01

J

316/11

H01J 9/00 (2006.01) H01J 9/44 (2006.01) H01J 29/70 (2006.01)

Patent

CA 1118488

RCA 71,582A MAGNETIZING APPARATUS & METHOD FOR USE IN CORRECTING COLOR PURITY IN A CATHODE RAY TUBE & PRODUCT THEREOF ABSTRACT OF THE DISCLOSURE A cathode ray tube of a color television receiver includes a magnetic material located adjacent to a neck portion. A magnetizing apparatus is used for establishing the color purity of three in-line electron beams within the cathode ray tube. The magnetizing apparatus comprises at least two elongated conductor loops arranged for positioning about the neck in proximity to the magnetic material and capable of being energized by a magnetizing current for creating permanently magnetized regions within the material. The magnetized regions produce a color purity magnetic field within the cathode ray tube for establishing the color purity of the three in-line electron beams. An elongated portion of each of the conductor loops follows along a portion of the periphery of the neck. - 1 -

308029

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