The effects of the permeability and the shape of deflection yoke cores on the sweep power of television sets

Studies were made on deflection yoke cores of television sets concerning sweep power, magnetic properties, and shape effects. It was found that the sweep power varied inversely with the permeability of the cores, and that cores with a permeability over 200 were considered to be practical for deflection yoke cores of television sets. The maximum magnetic flux density in a core was about 500 gauss. The sweep current was proportional to the taper angle of tapered cores. A new equation was derived considering the permeability and the dimensions of cores. The calculated values almost agree with the experimental values if the proportional coefficients are determined experimentally. Experimental curves may be found in the 1972 INTERMAG Digest Book.