Saddle-coil arrangement for a cathode ray tube and a coil carrie

Details Saddle-coil arrangement for a cathode ray tube and a coil carrie Saddle-coil arrangement for a cathode ray tube and a coil carrie

1990-06-22

1991-06-25

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335210, 313428, H01F 500

Patent

active

050270974

ABSTRACT:
A coil-carrier half (11) for a saddle-coil arrangement for a cathode ray tube accomodates a saddle-coil winding, in a front groove (13), a rear groove (14), left slots (18.11-18.51) and right slots. Prolongation of the left slots in comparison with the right slots results from the presence. in a rear wall (15.h) of a front-groove, at the positions where the left slots open out into the groove, of steps which are greater towards the front than at the fan-out positions of the right slots.
In an asymmetrically built coil-carrier half of this sort, turns (12)' are introduced in each slot so that they run towards the prolongation position of the slot. This produces a saddle-coil arrangement which leads to fewer image defects than when a conventional saddle-coil arrangement with symmetrical coil-carrier halves is used.

REFERENCES:
patent: 4260974 (1981-04-01), Nelle
patent: 4484166 (1984-11-01), Osinga et al.
patent: 4712080 (1987-12-01), Katou
patent: 4786838 (1988-11-01), Meershoe et al.

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