I just asked Ralph Karsten the same question. He also recommended Hickok testers, but said they would run $800-2K or so.
BTW- he offers tube testing for a modest price-which is what I am going to do, as I don't think I am going to need to test that many tubes.
Bob
BTW- he offers tube testing for a modest price-which is what I am going to do, as I don't think I am going to need to test that many tubes.
Bob