Thread: tube question
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  #11  
Old 10-06-2017, 05:37 AM
bobwl bobwl is offline
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Join Date: May 2010
Location: DFW, TX
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I can say that the GT 12AX7-C is a rebranded Shuguang 12AX7-A. My guess is that the premium vs non is just a Retail vs OEM or a Matched vs Non-Matched tube.
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