| 摘要 |
A color cathode ray tube deflection system includes a color cathode ray tube having triad-arrayed electron guns, a toroid deflection yoke having deflection windings symmetrical to the vertical axis and asymmetrical to the horizontal axis of a core of magnetic material, and dynamic convergence means for effecting radial movement of electron beams from said electron guns whereby horizontal and vertical trace lines on a viewing screen of the cathode ray tube are converged.
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