Good tubes individually tested by hand by my father using his TV-7B/U tube tester, in the numbers and quantities following. A few of them, listed below, we didn't have testing info on in the tester's book--if you have that, we'd be glad to test them for you before purchase. For every one you're interested in, purchase one item, and let me know which one(s) you want. Will combine shipping on these and other auctions if possible. If you don't see a tube you're interested in, email me; this list is not all the tubes my father has. Thank you!
-6sk7gt
-12ba6 (2, one a bit weak, my father said)
-12be6
-6cb6a (three available of this one, one a bit weak)
-6au6 (4 available, two have an additional 'a' at the end)
-6cg7 (two available)
-6bz6 (six available)
-6bu8 (two available)
-35w4 (two available)
-6be6 (2)
-6em5
-6bc5
-5gj7 (this one we couldn't test, had no info on parameters)
-8cg7/8fq7, double label
-6ag5
-6er5 (this one we couldn't test, had no info on parameters)
-6ak5
-6s4
-6aq5
-6ea8 (3)
-6ba6 (2)
-6hq3 had no info to test
-6ke8 had no info to test
-12ax7a
-12sn7gt (2)
-6t8a
-oa2
-ob2, very weak
-5u4 (2)
-6f5
-6sn7gt (3)