[Ron Ramirez]

The one 45 tests almost GOOD and the other one is down in the BAD. Does that explain why the one tube, while lit, is practically cold while the other one is hot?

Not necessarily. Check your audio output transformer. If one of the output tubes remains cold, I would suspect one half of the primary winding may be bad.

I'm not saying it couldn't be the tube because it certainly could be - but do check that audio output transformer before proceeding.