Almost impossible to find as NOS, these amazing metal base military spec tubes have consistently won 6SN7 shoot outs over and over again! Of course these are only for the most discriminating audiophiles. Search the world, the internet, you simply will NOT find these NOS in this kind of condition anywhere else. Known for their amazing soundstage, extended dynamic range, and attention to detail. Produced in the 1950's at the famed Hammersmith factory, these vintage British made tubes were actually tested and sealed for the military in 1964 until we opened them this year!  If you are demanding of the best, you should hurry and reserve a pair now before they are all gone!

Matched Pair Phono Grade $899.99!!