12AX7 / 7025 / 5751 / 12AY7

12AX7 / ECC83 is the most popular tube in guitar amps. Amplification factor is 100, which is highest of all audio triodes. Can be substituted with 5751, if amps has too much gain or if warmer sound is preferable. Amplification factor of 5751 is about 70.
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  1. RCA 5751 black plate NOS USA
    €79.00 €63.71
  2. JJ ECC803S - vintage style pre amp tube (=12AX7)
    As low as €13.00 €10.48
    Vintage style pre amp tube from JJ factory. ECC803S has more open and harmonic sounds compared to JJ ECC83S. Great for guitar amps. We recommend to choose SQ tested version for better quality. Learn More
  3. ECC83 (12AX7) Telefunken, smooth plate - unopened boxes (SUPER RARE)
    €250.01 €201.62
    Most wanted ECC83 for studio and hifi use. Learn More
  4. JJ ECC83MG
    €15.00 €12.10
    New ECC83 from JJ electronic. Sound quality and construction in between of JJ ECC83S and ECC803. Lower gain than ECC83S and less microphonic than ECC803. Learn More
  5. 5751 Highgrade TAD Premium Selected
    €27.00 €21.77
    High Grade selected preamp tube for most demanding applications. Learn More
  6. 7025 WA TAD HIGHGRADE Premium Selected - NEW -
    €22.00 €17.74
    Rating:
    80% of 100
    High Grade selected preamp tube for most demanding applications. Learn More
  7. ECC803 S TAD Premium Selected
    €22.00 €17.74
    Telefunken -style tube with large anodes Learn More
  8. 7025/E83CC HIGHGRADE TAD Premium Selected
    €17.00 €13.71
    High Grade selected preamp tube for most demanding applications. Learn More
  9. 7025 S Premium Selected -Mullard style- TAD-Tubes
    €29.00 €23.39
    Remake of Mullard ECC83 Learn More
  10. 7025 HIGHGRADE TAD Premium Selected
    €23.00 €18.55
    High Grade selected preamp tube for most demanding applications. Learn More
  11. 5751 TAD Premium Selected
    €20.00 €16.13
    Low gain version of 12AX7 Learn More
  12. ECC83 WA TAD Premium Selected - NEW -
    €13.00 €10.48
    Triple Mica -structure, low noise. Balanced. Learn More
  13. 12AY7/6072A TAD Balance-Selected, GOLD-PIN Stereo-HiFi-Selection
    €31.00 €25.00
    Gold pin version of the TAD 12AY7 Learn More
  14. 12AY7/6072A TAD Premium Selected
    €22.00 €17.74
    Input tube of the old Tweed amps Learn More
  15. 12AX7WA-R TAD Premium Selected
    €24.00 €19.35
    Very low noise, little less gain. Learn More
  16. ECC83-Cz TAD Premium Selected
    €16.00 €12.90
    Selected tube. Darker highs / warm sound Learn More
  17. 12AX7A/ECC83 TAD Premium Selected (~ 7025, 12AX7WA, E83CC)
    €18.00 €14.52
    Rating:
    83% of 100
    Very good gain, selected by matching triode halfs Learn More
  18. JJ ECC83S
    As low as €11.90 €9.60
    Good and warm sounding pre amp tube from the JJ electronic Factory. We recommend our SQ tested versions! Learn More
  19. ECC83, Philips - MINI WATT LOGO - Heerlen/Holland 1960 NOS
    €140.00 €112.90
    Heerlen/Holland factory made NOS Philips ECC83. type I63. DATE: 1960. Very good ECC83! Learn More
  20. ECC83, TRITON - VALVO (very rare) MC6 code NOS
    €140.00 €112.90
    Datecode: MC6 Made in Heerlen, NL. Learn More
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