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#11
06-21-2011, 11:04 AM
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Pete, I agree. When I get a chance, I will examine my other two metal bell prototypes. Unfortunately, they are both in sets (the Sparton and CBS prototypes), and getting to where I can read the rim numbers is a very non-trivial task. But I guess now I need to do it. One of these tube is a 6-bolt 20 pin base type, the other is a 3 bolt 20 pin base type. I would expect the rim numbers to be greater than Nick's if our theories are correct.
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John Folsom 
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