This may be a long shot but let's give it a try.
I have several pairs of matched 12AX7 tubes. These were sourced all over the place, but have all been tested by TCtubes.com on their Amplitrex tester. All test results are attached to the boxes. I have Mullard, Tele, Raytheon Black Plates, and lots of other Americans. I'd prefer a pair of Tele 12AU7 but let me know what you've got and their condition/testing.
Let's make a deal!
And have a Great Thanksgiving!!!!