[Charlie]

After hearing everyone's input (and thanks to all for it), I'm going with the idea that the Horz drive needs to be turned down. This is what I figured from the beginning, but was curious of what everyone here thought.

My sets that produce the white line all had new lytics and caps replaced, and likely new output tubes. I never checked or adjusted the drive in those sets. Perhaps I should have.

As mentioned before, I've never dealt with this in a color set... and I'd guess it's because I try to make sure that the drive is set correctly so not to roast a flyback.

Thanks again for the comments. I'll let you guys know what I find as soon as I pull the backs off the sets.