| 摘要 |
<p>10-4-1979 1 PHN 9180 "Method of manufacturing a deflection unit for a colour television display tube, a deflection unit manufactured according to this method and a colour display tube 'having such a deflection unit". A deflection unit for a colour television display tube comprising line and frame deflection coils and a magnet core cooperating with said coilscan be manufactured by placing the deflection coils and the magnet core around the part of the transition neck-cone of` a colour display tube in such manner that the deflection coils engage or substantially engage the tube, which display tube comprises an adjusted colour purity magnet, after which the tube is adjusted so as to be colour pure by moving the magnet core along the axis of the tube, after which, if desired, the magnet core is moved in known manner in a plane perpendicular to the tube axis so as to remove convergence errors and the magnet core and the coils are then connected together to form a deflection unit.</p> |
