I have for sale the following tubes:
Sylvania 12ax7a grey plates 2 mica, with O ring getter. Yellow lettering (mostly gone). Don't have a tube tester so don't know how it tests. But it works fine in my tube headphone amp. $8 shipped.
2x RCA Cleartop 12au7. Bought these off ebay a few months ago, and the seller said they tested quite high, about 90% of New level. I have used these lightly. $17 shipped.
