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  1. Mullard 12Ax7 / Ecc83 Balanced Triodes Size 12

  2. 1 pcs, MULLARD ECC83 / 12AX7, VINTAGE VALVES / TUBES. TEST 100% AS N.O.S. Y

    ECC83 / 12AX7. TESTS 100%.AS GOOD OR BETTER THAN NEW TUBE. 100%. PRICE IS FOR ONE PIECE. ( 1 Tube ).

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  3. Moersleutel Mullard Cv4004 / 12Ax7, Matched Pair

  4. A RARE MULLARD ECC83 12AX7 mC1 B6A LONG PLATE SQUARE GETTER VALVE TUBE 1956

    An early Blackburn Mullard ECC83 dating to January 1956. This has long black plates and a square getter. At book settings it reads A nice thing.

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  5. 12Ax7/Ecc83 Mullard Matched Trio Large

  6. 2x NOS Mullard ECC83 Valves Tubes Eq 12AX7 CV492 B339 CV4004 M8137

    2x Mullard ECC83 Valves. NOS specification: Ia = 1.2(mA), gm = 1.6(mA/V). This valve has also been tested in amplifier without any noise. Ia1 = 1.24(mA), gm1 = 1.65(mA/V). Ia2 = 1.4(mA), gm2 = 1.65(mA/V).

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  7. 4X ECC83 12AX7 MULLARD and BRIMAR Vintage Valve Tube Tested 1960s FREEPOST

    Four working ECC83 valves. Three Mullards and one Brimar, all with Halo Getters. These have been tested as good on a CT160 with the following results Brimar 2D2/1674. Mullard B5C3. 2 Mullard B4C3.

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  8. 2x Mullard ECC83 Valves Tubes 1955 mC1 Eq 12AX7 CV492 B339 CV4004 M8137

    2x Mullard ECC83 Valves. This valve has also been tested in amplifier without any noise. NOS specification: Ia = 1.2(mA), gm = 1.6(mA/V). Ia2 = 1(mA), gm2 = 0.95(mA/V). Ia1 = 1.33(mA), gm1 = 1.3(mA/V).

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  9. Mullard ECC83 12AX7 B1E Early Type D USED Tube AMPLITREX GM% 87 93 AUG19E

    Fully Tested on the Amplitrex AT1000 Tester. Mullard ECC83 12AX7. IA:66% GM: 87%. IA: 91% GM: 93%. USED Valve Tube. Test results This Valve. Valve As Photo. Early Type.

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  10. Mullard ECC83 12AX7 CV492 B1H4 1961 Valve Strong Test Vintage Preamp Tube

    • Factory Code: B1H4 – Blackburn factory, August 1961. • Military Spec: CV492. • Tube Type: ECC83 / 12AX7 – dual triode preamp tube.

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  11. Mullard ECC83 / 12AX7 Long Plate mC1 Valves/Vacuum Tubes Matched Pair (#28)

    A matched pair of USED Mullard ECC83/12AX7 tubes from 1956 with matching date codes in good condition (both dirty around the logo) and in good working order. I have cleaned them, but I haven’t cleaned around the logos because the logos WILL rub off.

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