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just bought some Sylvania 6SN7 Chrome Domes...

...It is a set of four. One of the tubes is different then the other three. Three have a clear plate at the bottom and a polished metal look inside and are marked CJ. The fourth tube is a dull gray look inside including the bottom plate and marked EM. Is there a significant difference in these tubes and should I get the odd one replaced with a matched tube to the rest?


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Topic - just bought some Sylvania 6SN7 Chrome Domes... - Corbu 19:15:56 01/31/05 (1)


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