CRT Color purity adjustment apparatus

Details CRT Color purity adjustment apparatus CRT Color purity adjustment apparatus

1983-03-24

1984-08-21

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335210, 313431, H01F 100

Patent

active

044673027

ABSTRACT:
A color purity adjustment assembly for color cathode ray tube indicators of the shadow mask type wherein the two ring magnets surrounding the tube neck for determining the magnitude and direction of the resultant magnetic field across the neck are manually angularly adjustable about the tube neck in the same or opposite directions by means of a differential gearing arrangement coupled therebetween.

REFERENCES:
patent: 3742406 (1973-06-01), Erickson
patent: 4050042 (1977-09-01), Anthony
patent: 4233581 (1980-11-01), Beaucamp

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