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

 


 

  • Ruby 12AX7ACZ HG

    Ruby 12AX7 ACZ High Grade
    $22.95
    Highest gain 12AX7, great for metal and hard rock. Selected high grade JJ ECC83.
  • Ruby 12AX7ACZ HG+

    /
    $26.95
    Highest gain 12AX7, great for metal and hard rock. Selected highest grade JJ ECC83.
  • Sovtek 12AX7LPS

    Sovtek 12AX7 LPS
    $29.95
    High gain, low noise, smooth sound. Great as a phase inverter. ****LIMIT 1**** (same as Mullard reissue 12AX7.)

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