So many "6"s....that is by far the largest lot followed by "1"s. Good to know about the 12au6. I have 17 of those so far. I am getting very close on a full inventory of the small box units. It will be while longer on the power tubes. I know everyone wants 12AX7's. I wish I could say there are bunch here. There are a few and some of the variations of the 12AX7 like the ECC84, 7058, etc . The inventory is on paper at the moment, thanks to my lovely wife for working hard on that. I will get it into a spreadsheet soon and figure out a way to post it.