Re: Definitive guide to convergence

Thanks to all that replied. I'm going to give this bad boy a go. I am bound
and determined to figure out the finer arts of convergence.


"Matt J. McCullar" <mccullar@xxxxxxxxx> wrote in message
news:oyPvf.1662$xz.618@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Matt, I have a four-page color document from Video Display Corporation
> that's a handy guide for adjusting purity and convergence in a color
> picture
> tube. (Why they don't have this on their web site, I'll never know.)
> I'll
> be glad to scan it and transmit a copy of it to you. (Then again, VDC
> referred to this as a "yoke change procedure," which may be why Google
> didn't turn up many hits. I haven't done so, but if you try searching
> under
> that prhase instead, you may get a hit.)
>
> I've learned through experience that something else will affect the purity
> of a color CRT: the back-and-forth position of the yoke along the neck.
> That is, if the yoke assembly is not fully ***-up against the curved back
> of the tube, the purity will be off. If it's even a half an inch away,
> closer to the neck board, you'll still notice it.
>
> Yep, I agree that having to adjust the purity and convergence in a new
> picture tube is as much fun as gargling razor blades. That's why I never
> swap out yokes along with the tubes if I can avoid it.
>
> Matt J. McCullar
> Arlington, TX
>
>
>


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