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.

Friday, January 9, 2015

Pearl/Vorg Warp Sound

Here's a rare one that came in via the request folder. It's a distortion/filter effect. Used live by guitarist Kevin Sheilds from My Bloody Valentine on "Sometimes," this might be a must-build for shoegazer fans out there.

Here's a demo video of a clone with the 100k trim pot wired externally as a distortion control (which might be a good mod to this circuit.





Not a true-bypass effect–removing the buffer is next to impossible. You can use a SPDT or if you want a LED on/off indicator, use a DPDT.




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6 comments:

  1. UnknownAugust 3, 2015 at 5:46 PM

    And where is switch#3 goes?

    ReplyDelete
    Replies
    1. dtgehringAugust 4, 2015 at 9:41 AM

      There's a typo on my part. Sw3 from the board goes to Sw2 on the switch diagram. Sorry for the confusion.

      Delete
  2. UnknownAugust 12, 2015 at 8:47 AM

    Thnx a lot,works perfect)

    ReplyDelete
  3. Jonathan ButterlyFebruary 19, 2018 at 7:51 PM

    Does the trimpot control the gain? I'm seeing a few clones of this(like in the video on this post) with a distortion pot. Just wondering if I could wire in an offboard pot instead of the trimmer to do just that?

    ReplyDelete
    Replies
    1. Effects LayoutsFebruary 19, 2018 at 10:00 PM

      I believe so, yes.

      Delete
    2. Jonathan ButterlyFebruary 21, 2018 at 6:01 AM

      Oh yeah. I guess you explained that above the video. My bad. Haha. Just ordered the parts to try it. Thanks!

      Delete

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