I have been repairing and upgrading my home HiFi system and was organizing some stuff in a drawer and found some extra vacuum tubes that I no longer need.  I will be listing more like a pair of the "grail" RCA triple mica black plate 5751/12ax7, and a RCA NOS 12au7 "clear top" side getter.  So check back...

This listing is for one Svetlana 12ax7 audio tube, it came with a Jolida 100 A CD player and was one of a pair.  I replaced them with a pair of Siemens long plates and have a pair of Mazda silver plates on order (sigh, didn't I mention that this is a sickness in the last listing?).  I don't know what happened to the other one.  I assume they were lightly used since I bought the CD player used.  Not tested since I have no way to do so, worked well when purchased in 2010.