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BITMO mod for Valve Jr

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  • BITMO mod for Valve Jr

    I have the BITMO parts for the Trio mod , but I cant tell where the 4.7uf cap goes .

    Anyone done this mod or have the scem ?

    I emailed bitmo and got no response

  • #2
    Logical Guitars and Musical Equipment: Epiphone Valve Junior and the BitMo Trio Mod

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    • #3
      The only thing that I can come up with is the 4.7uf cap would go on the first stage cathode bypass position.
      Stock is 22uf, so you would get less bass response, which should sound better when the amp breaks up.
      Mercury Magnetics
      Attached Files

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      • #4
        If you look at the pics in the link from olddawg, you can see the cap --it is switched in/out , on the new push/pull pot .

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        • #5
          Do you or don't you have some documentation on this thing?
          If so, please post it.

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          • #6
            O/K, here is a pic.
            As I said, it looks like it is the 12AX7 bypass cap.
            And it appears (without proper documentation) that they removed C4 (22uf) & are switching the 4.7uf in & out.
            (gain mod?)
            & a link: Mercury MagneticsClick image for larger version

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            • #7
              For further study try going to 18Watt.com

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              • #8
                i dont have the complete scem--- but thanks jazz -- the pics answered my question

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