Toroidal deflection winding for cathode ray tube having in-line

Details Toroidal deflection winding for cathode ray tube having in-line Toroidal deflection winding for cathode ray tube having in-line

1977-07-27

1978-11-21

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335210, H01F 500

Patent

active

041268423

ABSTRACT:
A toroidal vertical deflection winding for use with a yoke designed for a large screen, color cathode ray tube having in-line guns and a wide deflection angle, the winding constructed to achieve deflection and self-convergence of the electron beams over the entire screen of the tube without coma effect, the winding comprised of a frustrum-shaped magnetic core with three quarter-section primary clusters of toroidally wound conductors formed thereon in predetermined arcs, the conductors of at least one of said primary clusters being non-radially wound, said conductors being positioned generally geometrically parallel to each other and said primary clusters having substantially predetermined numerical conductor relationship.

REFERENCES:
patent: 3688156 (1972-08-01), Utsunomiya et al.
patent: 3731241 (1973-05-01), Coupland

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