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, September 21, 2015

Devi Ever Electric Brown

Here's a unique little circuit from Devi. Plenty of gain on tap to go from just a boost, to an overdrive, to fuzzy the more your turn up the volume control. The Pregain control acts more like a tone control, panning between 2 capacitors. The first transistor stage is kind of like an Electra Distortion, and then I don't quite understand the 2nd transistor, but it works and it sounds good.




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12 comments:

  1. BerkicauJanuary 28, 2016 at 3:06 PM

    verified!

    ReplyDelete
  2. UnknownFebruary 23, 2016 at 5:10 PM

    i suppose emitter of upper transistor should be connected to ground... am i right?

    ReplyDelete
    Replies
    1. Effects LayoutsFebruary 23, 2016 at 5:18 PM

      I would have thought that too, but from what I can tell, it's not.

      Delete
  3. Samuel BudiyantoMay 10, 2016 at 11:59 PM

    This producing tone-sound richer than Purple Plexi 800.
    And your PCB layout was perfectly good!
    This beauty grounding reduce noise very much!

    Thank's Bro

    ReplyDelete
  4. Miko1512January 27, 2018 at 4:17 PM

    pregain 2 to in???? wheres in

    ReplyDelete
  5. SandorFebruary 17, 2018 at 6:20 PM

    Volume 1 and volume 3 are changed no? That way the pot will work reversed. In fact I have built this one and at least for me it was reversed. Also, the pregain is really giving you more gain - not sure how or why. Maybe it is changing the input inpedance?
    In my version the pregain also works reversed. Did I make a mistake?

    ReplyDelete
    Replies
    1. Effects LayoutsFebruary 18, 2018 at 10:14 AM

      Check out the General Layout Notes tab for the correct numbering of pot lugs.

      Delete
  6. AlexApril 24, 2020 at 4:46 PM

    Hi, thanks for this layout. Can I use a 2n5088?

    ReplyDelete
  7. DominFebruary 19, 2021 at 3:42 AM

    My doesnt even sound like overdrive, more like tone coloring boost but its not boosting to much...

    ReplyDelete

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