[Kevin Kuehn]

I agree that first picture is actually really good for an old set in what looks like a very well lit room. Any chance you kept the old mica cap you replaced? If so I'd try putting things back to original.

[edit] oops, I see you posted the cure for your problem while I was typing my message. BTW you've done an excellent job of bringing this set back to life. Not an easy task for a first time TV restoration.