Convergence ?

[JohnCT]

Originally Posted by old_tv_nut

? I didn't think the mask affects convergence, only purity. ?

It affects both. Minor warpage or magnetism will affect purity, severe warpage affects convergence and purity, but these tubes were very stout physically and it would take a significant impact to warp the shadow mask bad enough to affect convergence.

Later tubes were more prone from bumping, and just looking at a Trinitron crosseyed would give them fits.

John