guildenstern
100+ Head-Fier
Just received a pair of NOS Tung Sol 5998, branded Chatham 2399. One tube seems to have something loose inside it -- makes a kind of metallic jangly sound when I move the tube. I can't see any loose or broken parts inside. And as far as I can tell, the tube works OK. So, I should just stop worrying and get on with life? Or is this kind of mechanical (not audio) noise a potential portent of problems down the road, which would mean that I should try to get the tube replaced? Thanks for your guidance!