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  1. 2 x ECC83 (12AX7) Valves / Tubes - JJ Electronics NEW TESTED

  2. Groove Tubes GT-12AT7 SELECT Preamp Valve

  3. Brimar CV492/ECC83 12AX7 KB/FD Half Box Plate Used Tested Valve Tube (K764)

    CV492 ECC83 12AX7 Brimar KB/FD grey Plate Used Old Stock Valve Tube Code 4A0/1573 1960 1573 = designation code for brimar cv492/CV4004 Hickok gm 1600/1750 mhos gm

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

  5. New Comfort Electro-Harmonix 12Ax7 Ehg Vacuum Tube Pins Gold Onbekend

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

  7. CV492 ECC83 12AX7 Brimar KB/FD Half Box Plate Used Old Stock Valve Tube (M488)

    CV492 ECC83 12AX7 Brimar KB/FD grey Plate Used Old Stock Valve Tube Code 4A0/1573 BK600 = 89/92 New 89 up Hickok test 1850/2000 mhos GM

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  8. 1 x ECC83 (12AX7) Valve / Tube - JJ Electronics NEW TESTED

  9. 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).

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  10. 4 x ECC83 (12AX7) Valves / Tubes - JJ Electronics NEW TESTED

  11. Kailas Jj 12Ax7 / Ecc83 Preamp Vacuum Tubes (Three Pack) Size 12

  12. 1965 MULLARD 12AX7 / ECC83 / ANOS / BALANCED

    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.

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

  14. Mullard Blackburn ECC83 Short Plate Halo Getter Valve Tube NOS I61 B2A4 (V13)

    I61 B2A4 Code in the Glass. Mullard Blackburn, Made in Great Britain. 12AX7 ECC83 Valve Tube. Short Ladder Plates, Halo Getter.

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  15. Genalex Gold Lion Gold Genalex Lion 12Ax7 Ecc83s / B759 Pins Vacuum Tube - Single Size 12

  16. 5 x ECC83 (12AX7) Valve / Tube - JJ Electronics NEW TESTED

  17. 1x Mullard ECC83 Valve Tube D8B O-getter VALVO Eq 12AX7 CV492 B339 CV4004 M8137

    Date Code: mC2 D8B. 1x Mullard ECC83 Valve. Manufactured by VALVO. This valve has also been tested in amplifier without any noise. Tested by AVO VCM Tester. NOS specification: Ia = 1.2(mA), gm = 1.6(mA/V).

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  18. (B-Stock) Friedman IR-D Dual Tube Preamp & DI Guitar Preamp with 12AX7 Valves

  19. Mullard 12At7 Matched Pair

  20. 1960's MULLARD 12AX7 / ECC83 / STRONG / BALANCED

    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.

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

  22. Mullard The Fisher ECC83 12AX7 Vintage 1964 i63 Audio Tube Pair (test OK)

    They feature a 1964 date code of "B4H2" with gray plates and a round getter. Both are test well and above the minimum. Audio Preamp Tubes (12AX7, 12AY7, 6SN7, 6DJ8, etc). It tests for heater-cathode leakage, gas, mutual conductance, and plate current.

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