Static/purity device for in-line gun

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

H - Electricity

01

J

313/35.11

H01J 29/70 (2006.01)

Patent

CA 1055101

ABSTRACT OF THE DISCLOSURE A static/purity device includes a stationary bipolar purity control with rotatable magnets and movable quadipolar and sextipolar controls with rotatable magnets 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. - 1 -

266829

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