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These A2900 are branded Marconi and were made by the MO Valve Company in England. They all have balanced sections (do not select balanced sections when checking out as the only stock we have remaining have balanced sections.)It has wide, flat black plates and an amazing huge soundstage! These are the biggest and boldest sounding tube in the 12AT7 category, and are extremely low noise and low in microphonics.
$299.99 per tube. Limited supply.
Marconi Osram B65 Metal base 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 $2999.99!! This is a suitable replacement for any 6SN7 tube type. Various brands available(most are Marconi/Torvac branded in original blue Marconi boxes) B65 specs
One piece available in original box NOS. This is the rarest of the rare of any 12AU7 tube type. Manufactured in the UK.
British made by GEC in Hammersmith UK, this is the best sounding 6J5GT = 6J5WGT Triode tube type.
Marconi Osram CV1264 allows you to get the same incredible tone of the GEC U52 by using a simple adapter you can buy on eBay( this is not a drop in replacement for the 5U4G (adapter is required) This GEC CV1264 tube is equivelent to: U18/20, 45IU, AU1, CV31, FW4-800, NU12, and RV200/600. All are branded with military CV1264 Hammersmith factory (Z) as well as the RSD branding. In original boxes. $349.99 per tube U18/20 spec sheet: u18-20 FW4-500 spec sheet: fw4-500
NOS GEC KT66/CV1075 - Clear glass, double halo getter version which are extremely hard to find in large enough quantities to provide extremely tight matching! We were lucky enough to obtain a large supply NOS in original commercial Marconi and military cartons. Pairs and matched quads available. This is a suitable replacement for any KT66 6L6 tube type. $375 per tube. Enter qty 2 for matched pair/ qty 4 for matched quad.GEC KT66 specs MOV KT66 specs
The GEC U52 is arguably the best sounding 5U4G Full-Wave rectifier ever made, other than the Western Electric 274A and 274B. These british made U52 tubes are brand new NOS in original boxes (branding on tube varies but all are original GEC made U52), and were made in the 1950's at the Hammersmith factory by Genalex (Marconi Osram - M-O Valve). All pieces are exactly the same with brown bases. Precision tested and pairs are digitally matched on our Amplitrex AT-1000. Exactly same construction as Gold Lion U52, just branded for the UK military. $424.99 per tube. Recommended for : Woo Audio, SET and Wright Sound SET, Audio Note P4, Dared MCP7 , Singlepower, Modwright, Donald North Audio
Made in England by Genalex, these CV4005 are the best of the best! U78 is the special number for the GEC NOS 6X4, and CV4005 is the military number. These have halo getter and same plate structure as all U78. All are in original boxes stamped CV4005! This is a suitable replacement for any U78 = 6X4 = EZ90 = CV493 = CV4005 = 6202 Full-Wave Rectifier tube type.