This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Monday, April 17, 2017

Wampler Pinnacle

Got another cascaded JFET design, this time from Wampler. Great for getting those EVH Brown Sound tones. I've added 2 trimmers for the 2 non-cascaded JFET stages to make biasing at little easier (originals use 22k resistors). Should be an easy fit in a 125B with top mounted jacks, but should also work in a 1590B with top mounted jacks (though you have to be really precise drilling those).


15 comments:

  1. Verified! By the way, spot switch is"Bright" and equal to "Vintage/Modern", and dpdt switch is "boost".
    Boxing with 125b so i can have boost using 3pdt foot switch.
    Sounds great! Thanks a lot.

    ReplyDelete
  2. Replies
    1. It's over on FSB. You'll need to login:

      http://freestompboxes.org/download/file.php?id=19399&mode=view

      Delete
  3. Good night, I would like to know how to put a DPDT foot switch, for the booster of this pedal, with a trigger LED? Tank you

    ReplyDelete
    Replies
    1. There's not a booster in this version of the Pinnacle (you're thinking of the Pinnacle II).

      Delete
  4. But this SWA would not be the booster, of that version? I think it might be possible

    ReplyDelete
    Replies
    1. That's more of a tone switch. Modern doesn't mean louder necessarily. haha

      Delete
  5. Yes, it's not for reinforcement booster, yes to replace the DTDP thank you

    ReplyDelete
  6. Hello, could you show correct numbering for dpdt switch lugs?

    ReplyDelete
  7. what is the value of the transistors used?

    ReplyDelete