New Developments in Toroidal Yokes for Color Picture Tubes

Abstract

Sylvania has long been actively engaged in the development of color television display systems, and during the past five years, studies have particularly and 1100 deflection systems both for delta and inline°gun arr°ys. This work has revealed that toroidal yokes are inherently precise magnetic deflection components which overcome the imperfections of saddle yokes in that they provide nearer to optimum beam landing, convergence, and consistency in production. As a majo consupplier of picture tubes, Sylvania believes it is in a position to optimize the combination of picture tube and yoke for better performance; the result of work to date has been the development of a family of toroidal yokes specifically designed to complement the characteristics of the present generation of color picture tubes.