Thread: RCA 1949 9TC275 in Detroit
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Old 10-23-2011, 10:09 PM
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miniman82 miniman82 is offline
First Light: 1952-2011
  
Join Date: Jun 2009
Location: Great Mills, MD
Posts: 4,183
Doesn't mean anything, many tubes have good filaments and dead cathodes or opens/shorts. Tester is the only way.
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