I hate tube rolling. I hate excessive tube rollers. I mean, WTF? Do you listen to tubes or do you listen to music? Anyway, someone sent me a PM regarding tubes. I can't find the PM. I don't know if it was regarding 6SN7, 6SL7, 300Bs, 6922, 7N7, 2A3, or 45 tubes, but please ask again here. I can only give tips since I don't own 1876 different kinds of tubes and I don't go around trying to stick random tubes that just happen to fit into sockets. However, the tips I provide (or others might provide) might be beneficial. And no pictures and no hand-jobs to each other. Pictures will be allowed for the identification of tubes (the plate structure, construction, etc.) since in many cases, a company would slap their brand names from an OEM.