I finally got frustrated enough with the annoying rattle coming from my amp to dive in and find it. I figured out that the power tubes were rattling like crazy. They are completely fine when I put a little upward pressure on them like in the pic below. Anyone know a cure for this? I have pulled the tubes and squeezed the tube holders together in order for a more snug fit but seems that after they get hot the rattle just comes back. It's fine @ louder volumes but when playing at house volume it is annoying.

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