Preamp Tubes

Preamp tubes take the small signal from your pickup and amplify it to "line level." As the signal passes through, preamp tubes influence the various EQ stages found in your amp, such as distortion, gain boost, tremolo and reverb.  In most amp circuits, it is common for each stage to be controlled by one preamp tube.  Therefore, preamp tubes will impact your tone more than any other tube change in your amp, especially in the V1 slot (closest to your input jack).


Additional options for your preamp tubes when needed:

Balanced:  When the plate current draw of each triode is the same, we refer to that as having balanced triodes. 

High Gain:  Tubes that measured to have higher gain.

Matched:  Each triode of the preamp tube has matching gain.

 


  • ANOS GE 12AX7

    ANOS GE 12AX7
    $0.00
    ANOS GE 12AX7. Not available at the moment.
  • ANOS RCA 12AX7A/7025

    ANOS RCA 12AX7A/7025
    $0.00
    ANOS RCA 12AX7A ****OUT OF STOCK****
  • CBS 6BK7B

    CBS 6BK7B
    $4.95
    CBS 6BK7B medium-mu 9-pin twin triode
  • GE 6201

    GE 6201
    $0.00
    Premium military NOS tube. SOLD OUT
  • GE 6BA6/EF93

    GE 6BA6/EF93
    $5.95
    NOS GE 6BA6/EF93 pentode.
  • Genelex CV4085/6267

    Genelex CV4085/6267
    $325.00
    Legendary original NOS Genelex CV4085/EF86/6267.
  • JAN 12AT7WC Grey

    jan-12AT7WC-grey-plate
    $14.95
    Great for reverb or phase splitter. Sturdy NOS tube.
  • JAN 5814A

    JAN 5814 WA
    $18.00
    Clean and musical, great 12AU7 replacement.
  • JAN 5963

    JAN 5963
    $15.95
    Full bodied sound, nice 12AU7 replacement.
  • JAN Philips 6188

    JAN Philips 6188
    $38.95
    Super rugged military low noise 6SL7 type hi mu octal tube.
  • JAN Philips 6189W

    JAN 6189W
    $16.95
    Great 12AU7 replacement. High grade, low noise.
  • JAN Philips 6922

    JAN Philips 6922
    $20.00
    Military 6DJ8 equivalent.

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