Do you want this tube? It’s yours for $10 (basically, covers shipping). There is nothing wrong with it, as far as I know. It’s a very lightly used Sylvania 6SN7WGT that I basically got by accident. My amp needs a matched pair, so a single tube is useless to me. The prior owner tested it, and says it tested at 75% of NOS. For context, tubes often test near NOS for the bulk of their useful life, so this is probably not going to last you nearly as long as a strong-testing true NOS tube, but probably good for a while nonetheless. A strong-testing NOS version of this is probably in the $50-65 range. No pressure, of course.