Apparatus for magnetizing a convergence device for in-line color

Details Apparatus for magnetizing a convergence device for in-line color Apparatus for magnetizing a convergence device for in-line color

1980-12-08

1983-07-26

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

For magnetizing or demagnetizing

335213, H01F 1300

Patent

active

043956920

ABSTRACT:
An apparatus is disclosed for magnetizing the convergence device of a color-picture tube including electrically excitable coils disposed around the tube neck and having their axes located in the convergence device plane. The cross sections of the coils in the convergence-device plane are greater than those perpendicular to this plane. This adaptation of the symmetry of the magnetizing coils to the symmetry of the convergence device makes it possible to exert a strong influence on the convergence device.

REFERENCES:
patent: 4105983 (1978-08-01), Barten et al.
patent: 4138628 (1979-02-01), Smith
patent: 4159456 (1979-06-01), Smith
patent: 4162470 (1979-07-01), Smith
patent: 4189659 (1980-02-01), Andre et al.

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