Static/purity device for in-line gun

Details Static/purity device for in-line gun Static/purity device for in-line gun

1976-04-01

1977-09-20

Pellinen, A. D.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

H01J 2982

Patent

active

040500411

ABSTRACT:
A static/purity device includes a stationary bipolar purity control with rotatable magnets and movable quadipolar and sextipolar controls with rotatablemagnets for positioning over an in-line arrangement of electron guns in a color television picture tube. The picture tube base defines a reference surface for the guns. The picture tube socket is mounted on a component-carrying printed circuit board which fits around the neck of the picture tube with the socket abutting the reference surface. A rigid plastic insulating cover protects the foil side of the board. The static/purity device includes a pair of legs cooperating with apertures in the cover for correctly positioning the magnets with respect to the gun elements when the socket is connected to the tube base. A clamp firmly affixes the entire assembly to the picture tube neck.

REFERENCES:
patent: 3410955 (1968-11-01), Mackey
patent: 3525962 (1970-08-01), Javorik

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