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.

Thursday, October 15, 2015

Sewer Pipes Ring-Verb

Here's a cool PT2399-based circuit designed by David Edgar (DIYSB member Earthscum). He describes it as, "kind of like playing in a sewer tunnel..." Here's a link to the original schematic and discussion over on DIYSB.

I noticed the schematic image in the DIYSB thread is now broken, so I've drawn up a new one for reference here.
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37 comments:

  1. UnknownOctober 15, 2015 at 10:59 PM

    any video or sound sample??

    ReplyDelete
  2. BerkicauDecember 10, 2015 at 10:19 PM

    have you tried to build this?

    ReplyDelete
  3. BerkicauDecember 22, 2015 at 1:57 PM

    I built it and found out that Amount was going reversed. any suggestion?

    ReplyDelete
    Replies
    1. Effects LayoutsDecember 22, 2015 at 9:13 PM

      I probably misread the schematic for the pot lugs. Try putting the wire to lug 3 to lug 1 instead and vise versa.

      Delete
    2. DiegoceAugust 6, 2017 at 12:06 AM

      How did you eliminate pop?

      Delete
  4. Lord_dokiJanuary 26, 2016 at 9:53 PM

    it worked, any suggestion for mods mod?

    ReplyDelete
    Replies
    1. Effects LayoutsJanuary 27, 2016 at 9:16 AM

      I already included the Resonance mod from the guy who designed it. Check out the thread on DIYSB.

      Delete
  5. AnonymousMay 2, 2016 at 1:18 AM

    Pretty cool little effect. It has a very loud pop when I turn it on. Did anyone else have that issue?

    ReplyDelete
    Replies
    1. Effects LayoutsMay 2, 2016 at 9:13 AM

      Add a pull down resistor from the input to ground. 1M should work fine

      Delete
    2. DiegoceAugust 6, 2017 at 12:07 AM

      It doesn't work :/

      Delete
  6. ThaipedalstompboxApril 9, 2017 at 11:02 PM

    Verified OK

    https://www.facebook.com/mr.fxman/videos/462650950793179/

    ReplyDelete
  7. AldenfiörenJuly 9, 2017 at 9:31 PM

    Hi, I'm cristobal de chile, I have a query, is there a wiring diagram? On the other hand, do you have to print the inverted board or are you ready to do it? I have been occupying a CNC to do the board. It is necessary to connect the input and output to earth, how is that connection?

    grettings from chile !!!

    Cz.

    ReplyDelete
    Replies
    1. Effects LayoutsJuly 9, 2017 at 10:24 PM

      If you're making the pcb on a CNC you will have to flip the image. There's a general wiring diagram in the General Layout Notes tab at the top of the page.

      Delete
  8. CANEPLAFebruary 9, 2018 at 9:05 AM

    Can I replace the 78L05 with an LM336Z25?

    ReplyDelete
  9. CANEPLAFebruary 13, 2018 at 2:33 AM

    my ressonance A50k didnt work in any position. should maybe i try a B100k? or any another sugestion?

    ReplyDelete
    Replies
    1. CANEPLAFebruary 13, 2018 at 3:50 AM

      I think about omitting resonance and staying with one pot. would it be the case of using a jumper?

      Delete
  10. UnknownAugust 8, 2018 at 10:50 AM

    didnt work, amount pot its right?

    ReplyDelete
  11. UnknownFebruary 21, 2019 at 8:05 PM

    What is the name folder of transfer library

    ReplyDelete
  12. AldaMay 14, 2020 at 2:09 AM

    I want to build this.. please lwt me know is it verified? Thankyouu

    ReplyDelete
  13. DedaloOctober 4, 2020 at 1:02 AM

    Verified!!! works fine. No pop. exelent!

    ReplyDelete
  14. Jun dFebruary 13, 2021 at 3:56 AM

    Its verified!!! It works fine and it really sounds like ur in a tunnel. Great.

    ReplyDelete
    Replies
    1. Ricco SeixasMarch 29, 2021 at 10:08 PM

      Please vídeo demo!!!
      Thank you.

      Delete
    2. UnknownApril 27, 2021 at 9:21 PM

      Hi.
      Do you have done a demo video of this reverb?
      If you have a demo video share it with us please. We want to hear like it sounds.
      Thanks.
      Best regards from Argentina.

      Delete
  15. StørmerMay 1, 2021 at 11:42 AM

    Hi. I'm a beginner with PCB creation and I don't understand the meaning of the circled "A" on the schematic. Can someone explain to me please? I would like to reproduce it on Eagle but I don't know what to do with this symbol

    ReplyDelete
    Replies
    1. Effects LayoutsMay 3, 2021 at 9:51 AM

      There are 2, "A" reference points on the schematic and it's a way of connecting two points of the circuit without drawing a line all the way from one side to the other. It's just a way of making the schematic a little cleaner.

      Delete
  16. GermanioAugust 16, 2021 at 8:33 AM

    Hola funciona pero al bajar los potenciómetros de la guitarra tono o volumen suena como pito de árbitro en la oreja... que puede ser??

    ReplyDelete
  17. Jun dOctober 18, 2021 at 6:10 PM

    To me as a fan of lead burning this simple reverb is good but not awesome. .tag it verified.

    ReplyDelete
  18. FoxbatAugust 27, 2023 at 9:10 PM

    The 10uF capacitor at the input is reversed on the layout, that means i can use a non-polarized capacitor? or what difference does it make?

    ReplyDelete

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