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Mojo JTM45 Schematic & Layout

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  • Mojo JTM45 Schematic & Layout

    Here's the Mojo So Called JTM45 Schematic and Layout.
    It's actually a version of the JTM45 but with major differences.
    It uses 32uf Can Caps instead of 16uf Turret board mounted Caps.
    It uses EL34s instead of KT66s.
    It uses a 3.4K Low Impedance Output Transformer for EL34s, instead of the 8k OT for KT66s.
    It does use a Rectifier tube for B+ Rectification instead of Diode Rectifiers common with EL34s.
    The Layout is Terribly hard to follow.
    The Input Preamp Circuit is the old JTM45, not the Split Cathode of the 1987 Circuit.
    These can be used to Trouble shoot Mojo Kit Builds.
    Good Luck,
    Terry
    Attached Files
    Last edited by big_teee; 09-17-2011, 06:34 PM.
    "If Hitler invaded Hell, I would make at least a favourable reference of the Devil in the House of Commons." Winston Churchill
    Terry

  • #2
    i want to build the 45 and i also want to do that mod you referred to
    & really i dont want to get into building amps for business
    pickups are simple
    "UP here in the Canada we shoot things we don't understand"

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    • #3
      It seems that those files are gone?
      Now Trending: China has found a way to turn stupidity into money!

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      • #4
        guitician - Have a look at Big Teee's post over at Metro Amps forum.
        The files and others are still there.

        MetroAmp.com Forum ? View topic - Mojo JTM45 standby wiring.

        cross pollination ?

        Comment


        • #5
          Might as well have them here too .
          Attached Files
          Originally posted by Enzo
          I have a sign in my shop that says, "Never think up reasons not to check something."


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