Coil for deflection yoke assembly, apparatus, and method for making the same.

摘要

The present application is concerned with coils for deflection yoke assemblies wherein changes in the homogeneity of the coil windings are created to obtain a desired magnetic field pattern for deflecting electron beams in cathode ray tubes. The control of the distribution of the wire in the winding may cause damage to the windings during manufacture. This drawback is avoided by means of dimples or depressions formed in a deflection coil for a CRT deflection yoke assembly by inserting a spherically shaped end (100) of a dowel-like pin (98) through a hole (102) in the wall of a female arbor (80), to protrude into a winding cavity (90) formed between a male arbor (82) and the female arbor (80) of the associated yoke coil winding machine. The pin end is inserted only partially into the cavity (90), for acting as a deformation in the wall of the female arbor (80), thereby causing convolutions of wire being wound around the cavity to overly the pin (98). <IMAGE>