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  1. New Balance Men's Blue Levi's X 990V3 Made In Usa 'Mallard '

  2. 1 X 12AT7 / ECC81 RCA TUBE. 1960s ITALIAN PROD. COPPER RODS. 9. CH168

    1960s ITALIAN PRODUCTION. GRAY PLATES, HALO GETTER, COPPER RODS. 1 X 12AT7/ECC81 TUBE. TESTED IN ROEHRENTEST TUBE TESTER.

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  3. Sylvania Gold USN 12AT7WB Test NOS 3-Mica Grey Plates Squ Get Serious Tubes D350

    Manufacturer: Sylvania Gold for U.S.N. But this the way of the world now. We are always looking to buy more tubes. Large collections, small collections, it doesn't matter. Looking forward to hearing from you, Dan.

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  4. 1 X 12AT7 / ECC81 TUNGSOL TUBE. D-G. 1960s PROD. 102/112%. CF ENA

    1 X 12AT7 / ECC81 TUBE. 1960s PRODUCTION. TESTED IN AMPLITREX AT1000 TUBE TESTER 102/112% EMISSION (EM) 99/105% TRANSCONDUCTANCE (GM) 1.2/0.8mA/V GAS.

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  5. New Balance Men's Blue Tokyo Design Studio X Rc_1300 'Mallard '

  6. PHILIPS MINIWATT ECC81 HENDON WORKS 12AT7 AUSTRALIA PERFECT BAL TEST NOS++ RARE

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  7. Mullard (Philips Herleen) ECC81 12AT7 Foil Strip D Getter Valve NOS (V50) #3

    Herleen Factory Production. 12AT7 ECC81 Valve/Tube. Grey Plates, Foil Strip D Getter. This Valve Tests. 100% Book Spec - Ia 10 - Gm 5.5.

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  8. Mazda Mullard ECC81 12AT7 Square Getter Valve Tube Tk1 New Old Stock (V43)

    Square Getter, Tk1 Code in the Glass. 12AT7 ECC81 Valve Tube. Unused, Supplied in Mazda Box. 100% Book Spec = Ia 10 - Gm 5.5.

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  9. New Balance Men's Blue Levi's X 990V3 Made In Usa 'Mallard '

  10. Motorola 12AT7/ECC81 Dual Triode Guitar Amp. Audio Vacuum Tube Valve- Bangybang.

    12AXY, 12AT7, and 12AU7, can still be confusing to differentiate and understand which is used for what purpose and whether one can be substituted for another. Below we will try to clarify the most common differences between the 12AXY, 12AT7, and 12AU7, and in what circumstances they can be interchangeable.

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  11. 12AT7 / ECC81 Sylvania Tube New (New Old Stock)Test NEW 1 Year Warranty

    Reference tube is tested first then the tube listed for sale. Test procedure.

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