[mikethedruid]

OK, so, now you know why those of us who get into restoring antique radios buy a decent period tube tester. You will want one which tests all the early sizes, 4, 5, 6, and 7 pin base, as well as octal and locktal base at a minimum. They can be found on eBay. They are not as cheap as they once were, but are still worth the money if you really get into this hobby. Once you get one, replace any paper and electrolytic condensers in it.