High resistance continuous shield for reduced capacitive couplin

Details High resistance continuous shield for reduced capacitive couplin High resistance continuous shield for reduced capacitive couplin

1978-12-19

1980-12-02

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335301, H01F 300

Patent

active

042374383

ABSTRACT:
Capacitive coupling between coils of an electron beam deflection yoke and between coils and the electron tube is reduced by electrostatic shields. The shields are continuous for best shielding. Eddy currents flow in the shield resulting from the magnetic beam deflection fields results in field distortion and power loss. The eddy current flow and the power loss are reduced by using a nickel chromium alloy material for the shield.

REFERENCES:
patent: 2026060 (1935-12-01), Pratt
patent: 2490731 (1949-12-01), Goodale et al.
patent: 2568456 (1951-09-01), Malheiros
patent: 2845562 (1958-07-01), Bendell et al.
patent: 3551718 (1970-12-01), Bossers
patent: 3601648 (1971-08-01), Uno
patent: 4152745 (1979-05-01), Eul

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