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JCM800 6V6 build

Discussion in 'Shock Brother's DIY Amps' started by BoneTone, Oct 30, 2020.

  1. BoneTone

    BoneTone TDPRI Member

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  2. robrob

    robrob Poster Extraordinaire Ad Free Member

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    You could always just use the 18W output transformer to drive EL84 power tubes and leave everything else JCM800.
     
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  3. Nickfl

    Nickfl Friend of Leo's

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    What are the specs on the transformer set? A pair of 6v6 should be fine with an OT that was intended for PP el84, but the power transformer voltage may be a bit low.
     
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  4. stantheman

    stantheman Doctor of Teleocity

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    MojoTone is doing a highly regarded 18 Watt with 2 6V6’s
    that is being exclusively sold on Reverb.
    You can hear samples on YouTube.
    It is impressive - they call it The Blackout Version.
     
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  5. BoneTone

    BoneTone TDPRI Member

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    Thanks, this makes sense. I'll use the EL84's and save the 6V6's for another day.
     
  6. BoneTone

    BoneTone TDPRI Member

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    Yeah the PT was my concern. It's 290-0-290, a little weak for the circuit. I'll stick to EL84's for this one. Never was crazy about the 18W I built, so just happy to put this iron to use.
     
  7. Nickfl

    Nickfl Friend of Leo's

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    I think you could get either way, that would maybe be a bit lower then his intended voltages for the 6v6 jcm 800 circuit but it's adjustable fixed bias so those voltages will depend on the bias point you choose to some degree anyway.

    I did a build recently where I gutted and rebuilt a jet City 20 head (PP EL84) has something along the lines of a Train wreck Express with an EL84 power section. The el84s worked well for that high gain circuit so I would think they will work well for you here.
     
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