Deflection yoke for a color cathode ray tube

Details Deflection yoke for a color cathode ray tube Deflection yoke for a color cathode ray tube

1988-05-18

1989-11-21

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

358248, 335213, H01J 2970

Patent

active

048825212

ABSTRACT:
A deflection yoke has magentic field correcting auxiliary yokes (5) disposed at the flare side end of the insulative bobbin (2) for holding a pair of horizontal deflection coils (3) and a pair of vertical deflection coils (4), each magnetic field correcting auxiliary yokes (5) comprising a long and slender arc shaped core (6) disposed along the end portion of either of the horizontal deflection coils (4) or the vertical deflection coils (4) and a pair of auxiliary coils (8R, 8L) which are wound on the core (6) and connected in series to the vertical deflection coils (4); and thereby the raster distortion and mis-convergence are substantially reduced.

REFERENCES:
patent: 4257024 (1981-03-01), Shimoma et al.
patent: 4785272 (1988-11-01), Osseyran

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