Thread: Admiral 30A12 restoration
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  #19  
Old 05-18-2013, 04:28 PM
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bandersen bandersen is offline
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Join Date: Mar 2009
Location: Chicago, IL
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Good eye. It's tied to the 6.3 VAC filament supply and I believe it creates a small negative bias for a few tubes. It's definitely on my list of many things to check
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