Method of manufacturing a colour television display tube

Details Method of manufacturing a colour television display tube Method of manufacturing a colour television display tube

H - Electricity

01

J

316/11

H01J 9/24 (2006.01) H01J 9/42 (2006.01)

Patent

CA 1164928

ABSTRACT: In a method of manufacturing a colour television display tube, marks for the posi- tioning of the display window are provided on the funnel part of the tube. Upon providing the marks, for example studs, reference surfaces, recesses or ribs, the funnel part is fixed in a centring device which fixes in the funnel part a reference point to which the provision of the marks is referenced. The reference point is situated in or substantially in the deflection centre of a deflection device provided afterwards on the funnel part.

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