I have a question that I hope someone can answer: 4-pin bases are called "UX", 5-pin bases are called "UY". So what are 6- and 7-pin bases called? Is a 6-pin a "UZ"? If it is, than what could the 7-pin be?
I have seen some people call all American bases "UX", but I know this isn't right, so what do you call them?
Here's another question: Why do some tubes like German rectifiers use mesh plates?
Thanks for any help.
[This message has been edited by Dylan (edited August 27, 2001).]