12AX7 / ECC83 / 7025

The 12AX7 is by far the most common out of all preamp tubes. Also known as the ECC83 or the 7025, it is a dual triode tube that has the highest voltage gain of all preamp tubes, with a mu of 100. Widely used across guitar amplifiers and hi-fi applications.

For less gain, you can replace a 12AX7 with 5751, 12AT7, or a 12AY7

 


 

  • NOS 12AX7/7025

    NOS 12AX7
    $0.00
    Assorted NOS 12AX7. Call for availability.
  • NOS-Chinese 12AX7

    NOS-Chinese 12AX7
    $28.95
    NOS 80's Chinese 12AX7(Foil dimpled square getter). Made in the closed Beijing tube factory. Purchase 5 and save $10.
  • Penta 12AX7

    Penta 12AX7
    $13.95
    Warm, fat tone. We are now shipping 12AX7AC5 HG's in place of Penta's.
  • Sovtek 12AX7LPS

    Sovtek 12AX7 LPS
    $14.95
    High gain, low noise, smooth sound. Great as a phase inverter.
  • Sovtek 12AX7WA

    Sovtek 12AX7 WA
    $11.95
    OEM for major amp makers. Best for those on a budget.
  • Sovtek 12AX7WB

    Sovtek 12AX7 WB
    $13.95

    Stock for major amp makers. Best for those on a budget.

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