Thread: RCA CTC4B "Gainsborough" picked up in San Francisco
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  #55  
Old 01-19-2016, 10:37 PM
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miniman82 miniman82 is offline
First Light: 1952-2011
  
Join Date: Jun 2009
Location: Great Mills, MD
Posts: 4,183
I've never found it necessary, guess someone found a problem at some point that it cured. Maybe today's modern meters are better? Dunno.
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