Nos mullard 12ax7. VERY RARE TUBE IS NOS WORKING NEW CONDITION. MULLARD 12AX7/ECC83 Tube de puissance Haute Qualité Réédition moderne de ce célèbre tube Mullard Caractéristiques : Applications : amplificateur, Hifi Fabrication : Russie Qualité : Audiophile, qualité supérieure Tube très équilibré et sonorité de très haut niveau Mullard 12AX7 Pre-Amp Tube - Tests NOS • LA Vintage Gear 12AX7 et I have 1 1958 Mullard Long plate 12AX7 tube with the 2 support O getter . They h Here we have for sale is an outstanding NOS tested Mullard 12AX7 ECC83 Tube. This is a very nice tube. Tests NOS at 102% / 103%. We try to always stock long plates, short plates, and 7025 for our Mullard 12AX7 tubes. If you have a hi-end audio system or vintage Vox or Marshall amplifier, these are a must try! New Old Stock (NOS) Mullard 12AX7 matched preamp tubes manufactured at the Blackburn Factory. NOS test results with Platinum BALANCED Triodes. Balanced 1957 Mullard mC1 square getter long plate 12AX7 ECC83 tube tested on calibrated B&K Dyna Jet 707 where a reading of 22 = 60% this tube tested 26/27 & sound tested in Eico amplifier sound is superb Thanks for Looking!!Here we have for sale a rare set of NOS tested Amperex 12 AX 7 ECC 83 Yellow Tip SELECTED tubes. (2) 12AX7;(1)12AT7. ffxa bpaz trg vamscjc wbzk bzms wxvah drpiep uft qjsm