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  1. Groove Tubes GT 12AX7 / ECC83-S Preamp Tube/Valve

  2. Comfort Gold Electro-Harmonix 12Ax7 Ehg Vacuum Tube Pins

  3. 2x Mullard ECC83 12AX7 Short Plates - Blackburn '61 - Philips Label - Near NOS

    "Like a warm British jacket of the finest tweed, these glorious tubes have an attractive sweet warmth in their midrange and lower regions.". The top end is silky and pleasant and doesn't get rolled off.

    eBay

  4. Friedman IR-X Dual Tube Preamp & DI Guitar Pedal with 12AX7 Valves

  5. 1 x ECC83 (12AX7) Valve / Tube - JJ Electronics NEW TESTED

  6. Dr. Tung's Tung-Sol 12Ax7 Preamp Vacuum Tube, Single

  7. IEC MULLARD ECC81 NOS BLACK Plates O Getter 12AT7 Tube

    A tube was considered acceptable/new/ passed standards if it tested between the specified minimum and maximum on a tube data sheet or the minimum value specified on the tester (tv7 is minimum is 65%).

    eBay

  8. 4 x ECC83 (12AX7) Valves / Tubes - JJ Electronics NEW TESTED

  9. 1967 MULLARD 12AX7 / ECC83 / SHORT PLATE

    It’s been said that the Mullard sound can be most likened to a warm British jacket of the finest tweed. And I like how Mullard tubes sound, too. Enticingly intimate and warm, almost sweetly so, it’s always a close, handsy dance when listening to a Mullard.

    eBay

  10. 5 x ECC83 (12AX7) Valve / Tube - JJ Electronics NEW TESTED

  11. Mullard 12At7 Matched Pair

  12. 1959 MULLARD EZ90 6X4 SQUARE D GETTER YY1 B9F COPPER POST TUBE TEST NOS ENGLAND

    SLANTED SQUARE D GETTER. AUDIO VACUUM TUBE. reserve the right to assess. MINIMUM GOOD = 60. you encounter any issues with. you encounter any issues. look forward to serving you. (FUN FACT - THE SENCORE MIGHTY MITE IS SAID TO BE ONE OF THE BEST TESTERS EVER MADE FOR GRID LEAKAGE TESTING).

    eBay

  13. (B-Stock) ART TubeMix USB Mixer with 12AX7 Preamp Valve

  14. 3X7025 12Ax7 Ecc83 Vacuum Tube For Guitar Amplifier Size 3

  15. *Rare* Mullard ECC83/12AX7 1600 1954 Square Getter Valve/Vacuum Tube -AVO Tested

    Very Rare Mullard ECC83 / 12AX7,1600, 1954 Valve/Vacuum Tube - AVO Tested strong and balanced. Blackburn manufacture with D4, 1600 April 1954 date code.Long plate, square getter. Lettering excellent.

    eBay

  16. Markbass Mark Vintage Pre Bass Guitar Preamp with 12AX7 Tube

  17. Zonneschijn Gold Tung-Sol Ecc803s 12Ax7 Pin Preamp Vacuum Tube

  18. 2x BRIMAR 12AX7 Valves Tubes Long-Plate Eq ECC83 CV492 B339 CV4004 M8137

    2x BRIMAR 12AX7 Valves. This valve has also been tested in amplifier without any noise. Ia1 = 1.12(mA), gm1 = 2(mA/V). NOS specification: Ia = 1.2(mA), gm = 1.6(mA/V). Ia2 = 1.3(mA), gm2 = 2.1(mA/V).

    eBay

  19. 2 x ECC83 (12AX7) Valves / Tubes - JJ Electronics NEW TESTED

  20. MULLARD 12AU7A /ECC82 NOS/NIB Etched Codes MaxiPreAmp2/TV-7 Tested (1) Tube Lot

    I test all tubes thoroughly and with great care. I test to the best of my ability, and I report all results honestly.

    eBay

  21. Tubedepot Pair Of Electro-Harmonix 12Ax7 Eh Preamp Vacuum Tube Size 12

  22. 1958 MULLARD EZ90 6X4 SQUARE D GETTER YY1 B8L COPPER POST TUBE TEST NOS ENGLAND

    SQUARE D GETTER. AUDIO VACUUM TUBE. reserve the right to assess. MINIMUM GOOD = 60. you encounter any issues with. you encounter any issues. look forward to serving you. (FUN FACT - THE SENCORE MIGHTY MITE IS SAID TO BE ONE OF THE BEST TESTERS EVER MADE FOR GRID LEAKAGE TESTING).

    eBay

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