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WTB: EF86 for U67

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Hank Dussen said:
My U67 has some crackling noises and I want to check it with a different tube…
Anyone has a spare one laying around?

I have a pair of NOS/NIB GEC EF86, ex mil-stock. Rather expensive, but IMHO it's about the best EF86 you can get for money. Premium valves. They usually go for about 80-100 eur each. I can let them go for 130 including shipping.

Ps, both tests as new on my calibrated AVO MkIV.
 
I have mic-grade (tested in real mic circuit) ef86 tubes almost all types - Tungsram, Valvo red 5 code(selected for Neumann), Telefunken ef806s.
 

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