Convergence unit for in-line color cathode ray tube

Details Convergence unit for in-line color cathode ray tube Convergence unit for in-line color cathode ray tube

1982-12-29

1984-09-04

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

313421, 335213, H01F 700

Patent

active

044700296

ABSTRACT:
A convergence unit for an in-line color cathode ray tube consists of two E-shaped cores, preferably formed of strip-shaped soft-magnetic material. Each E-core has two relatively long limbs extending from a central relatively short pole piece to end relatively short pole pieces windings extend around the limbs which are substantially parallel to a tangent to the neck of the CRT so that the magnetic fields due to individual turns reinforce the magnetic fields between the pole pieces.
Preferably each E-core has each of its two windings extending over both limbs, one being reverse wound, so that the mutual inductance between the two windings is zero.

REFERENCES:
patent: 3866080 (1975-02-01), Barkow
IBM Technical Disclosure Bulletin, vol. 24, No. 2, Jul. 1981, pp. 1061-1062.
IBM Technical Disclosure Bulletin, vol. 24, No. 2, Jul. 1981.

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