Mullard CV4004 tube M8137 (ECC83 / 12AX7)
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For Sale
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GBP
Price
50.00
May 26, 2015 at 8:24 AM Thread Starter Post #1 of 1

MP1968

100+ Head-Fier
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I understand that CV4004 is the UK Government code for the commercial M8137. 
 
Bought from Langrex UK as unused New Old Stock on the 12th March, and was used in an Icon HP8 headphone amp for no more than around 40 hours.  
 
I have sold the Icon so I'm selling the tubes as well.  
 
Price includes the PP fee, but excludes postage: please contact me for a quote. 
 
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