High resolution torodidal deflection yoke

Details High resolution torodidal deflection yoke High resolution torodidal deflection yoke

1977-04-07

1978-01-24

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335210, H01F 700

Patent

active

040706400

ABSTRACT:
A deflection yoke for a cathode ray tube includes a core of magnetic material having front and back end portions, a front crown having a substantially flat outer surface normal to the core member axis and a slotted outer circumferential surface, a back crown member having a slotted surface normal to the core member axis, and a plurality of wire turns toroidally wrapped about the core and front and back crown members with the front crown member having a single layer of wire turns and the back crown member having a first layer at wire turns extending radially and added layers of wire turns extending non-radially to the front crown member. A process for fabricating a deflection yoke includes selecting and affixing crowns to a core member and wrapping wire turns thereon to include a single front layer and multiple back layers.

REFERENCES:
patent: 3757262 (1973-09-01), Over et al.
patent: 3801941 (1974-04-01), Phillips
patent: 3996542 (1976-12-01), Barkow

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