All tubes listed are pictured. Prices include shipping and are OBO. Willing to trade!
The old USA branded tubes were purchased by me several years ago at Mendelson's, a local liquidation outlet store. They have two tube testers and all tubes tested between 100% and above on both testers. You can see some were once used despite testing excellent. Do I call them NOS? ANOS? Guaranteed not to be DOA.
Back row left to right:
Sovtek 12AX7WA - $8. Lightly used in a Valve Jr for between 20 to 50 hours.
JJ ECC83S (12AX7) - $10. Lightly used in a Valve Jr. Probably less than ten 10 hours on it.
GE USA longplate 12AX7 x3 - $35 each / $100 set OBO. These are probably the best sounding 12AX7 I've ever come across. Amazing overdrive. i don't know if I want to sell these to be honest.
Sylvania USA 12AT7 - $15 OBO.
National USA 5963 - $15 OBO. Nearly identical to a 12AU7 with lower plate voltage.
Beckman USA 5963 - $15 OBO.
Front row left to right:
Sylvania 6SN7 - $20 OBO.
EHX 6V6GT (matched pair) - $15 OBO. Bought these for an organ and I never used them.
GM Delco USA 6SL7 - $30. Super cool looking tube! Some car/amp junkie like me would love having this in their B-15.
Left to right:
USA 6201 (12AT7/ECC81) x3 - $30 OBO / $10 each.
National 12AV7 - $15 OBO. Like a hotter 12AU7.
USA labeled 12AV7 - $15 OBO.
Westinghouse 5963 - $15 OBO. Nearly identical to a 12AU7 with lower plate voltage.
Lowrey labeled USA 12AU7A - $15 OBO.
Groove Tubes GT-6550 Blue Fender matched sextet - $150 OBO. I got them in a trade with another TB'er. Still new. The blue paint means it's in their 1-3 range.
JJ 4x 12AX7 + 6x 6L6 matched set - $95, same as I paid. Perfect for a Mesa Buster or whatnot.
There may be more tubes to come. These strings are also FS. (Make an offer.)
Rotosound RS 666LC 30-125 x2
Rotosound RS88LD 65-115
Rotosound SM66 40-100
Rotosound RS 66LD 45-100
Rotosound RS 666LD 35-130