Picture tube with deflection yoke

Details Picture tube with deflection yoke Picture tube with deflection yoke

1987-06-22

1988-08-16

Moore, David K.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

335213, H01J 2970

Patent

active

047647051

ABSTRACT:
A deflection yoke is mounted on a picture tube in such a manner that a ring of thermoplastic material is first attached by adhesive bonding to the tube neck and the deflection yoke is then pushed onto the picture tube, so that a tubular extension to the coil form of the deflection yoke overlies the ring. The tubular extension is of the same thermoplastic material as the ring. When the deflection yoke has been adjusted, the thermoplastic ring and the tubular extension are joined together by a welding operation, e.g., by spot welding. The result is a rapidly setting and operationally stable joint between the deflection yoke and the picture tube. To improve adjustability, the ring can have a curved surface.

REFERENCES:
patent: 2852712 (1958-09-01), Fabel
patent: 4620127 (1986-10-01), Chung et al.

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