Convergence unit for cathode-ray tube

Details Convergence unit for cathode-ray tube Convergence unit for cathode-ray tube

1981-06-08

1982-07-13

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335210, H01H 100

Patent

active

043397360

ABSTRACT:
Convergence of the beams of an in-line gun shadow mask cathode-ray tube is provided by windings on a common core and generating pairs of quadruple and six-pole magnetic fields, respectively. The core is provided with non-magnetic ribs each having a projection for the purpose of locating the windings.

REFERENCES:
patent: 4122421 (1978-10-01), Malerba
patent: 4128824 (1978-12-01), Mirsch
patent: 4228413 (1980-10-01), Campbell

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