I have a bunch of guitar tubes that are new or NOS. I have both pre and power tubes. Generally they are 6v6s, 6l6s, 5881s, el84s, 5ar4s, and a large assortment of 12axx type pre tubes as well as mil spec 5751 and 12at7 pre tubes. One pair of kt66s.Let me know what you might be looking for and I will check. Could do a bulk sale also if your a repair guy. I have between 150 and 175 tubes.