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, January 5, 2015

MOD The Verb Deluxe

Here's another MOD effect. It's a simple reverb using the Belton Digi-Log Mini Reverb Module (the BTDR-2H-L), which you can mount directly to the board. The DPDT switch referenced in the layout is the on/off stomp switch if anyone is confused by that. Here's the schematic and a sound sample for reference.


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20 comments:

  1. UnknownJanuary 12, 2015 at 5:09 AM

    Got this etched and populated tonight and it sounds great. The DPDT worked great and since its buffered it had tails. I used a short belton brick since I wanted the least amount of modulation that the Belton bricks seem to have. I also subbed Q1 & Q2 with J201's. I would say this is now verified.

    Here is a pic of the board populated:
    http://music.codydeschenes.com/wp-content/uploads/2015/01/IMG_0120.jpg

    Cody

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    Replies
    1. dtgehringJanuary 12, 2015 at 11:22 AM

      Thanks Cody! Fantastic looking board btw. I'm working on this guy on perf as well and was planning on using J201s as well. Glad to hear those work.

      Delete
  2. IgnacioAugust 1, 2015 at 2:07 PM

    Hi! I built this pedal and works great. First i used MPF102 to replace Q1 and Q2 but it didn't work. Then I subbed Q1 & Q2 with J201's and works.

    Some questions:

    Are voltage ok?

    Q1 (j201): D- 5.85v S- 0.68v G- 0v
    Q2 (mpf102 o j201): D- 6.35v S- 5.10v G- 0.98v

    If I use a bigger resistor to Q1 Drain, volumen goes down? If I use a smaller resistor, it goes up?

    Thanks. Sorry for me english. (I'm from Argentina)

    Thanks again.

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    Replies
    1. dtgehringAugust 3, 2015 at 9:42 AM

      I would think if it works, the voltages are fine. :) I didn't measure them on the one I built, so I don't really have anything to compare with.

      I don't know about the volume level and adjusting that resistor. It biases Q1, so messing with it might make it not function properly. You can always socket and experiment.

      Delete
  3. fredAugust 22, 2015 at 10:17 PM

    Hi, can I wiring this pedal in true bypass?

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    Replies
    1. dtgehringAugust 22, 2015 at 11:22 PM

      I think you can just ignore the switching indicated on the layout and just wiring the in/out like you normally would for true-bypass. Refer to the schematic to double check. The link is in the description above.

      Delete
    2. fredAugust 23, 2015 at 12:15 AM

      thanks brother, I'll try

      Delete
  4. UnknownNovember 20, 2015 at 2:40 AM

    What is the number 654321? Are the pins of dpdt?

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    Replies
    1. UnknownNovember 20, 2015 at 2:43 AM

      Those are the pins of the Belton reverb brick you need to build this reverb.

      Delete
  5. fredDecember 17, 2015 at 7:49 PM

    Q1 and Q2 don't need to be matched right?

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  6. AnonymousMarch 31, 2016 at 2:39 PM

    thank you

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  7. AnonymousApril 6, 2016 at 5:14 AM

    Just want to confirm this build, it's 100% working, used stock PF5102 and BTDR2H-Long(2,8ms). Very very nice warm reverb.

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  8. UnknownJune 14, 2018 at 9:18 PM

    It works?

    ReplyDelete
  9. faberDecember 12, 2018 at 9:43 AM

    Got it working with 2x J113 or J113 as Q1 + J112 as Q2. Tried two for J111 or J112 but they didn't work.

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  10. primavera onlineJune 3, 2021 at 7:16 PM

    usei o mpf102 deu certo

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  11. plenNovember 4, 2021 at 6:24 PM

    is there any diagrames or photos of the wiring

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  12. plenNovember 17, 2021 at 8:48 PM

    i built both of these and they dont work.

    ReplyDelete
  13. plenDecember 1, 2021 at 2:45 PM

    has anyone got this to work with 2n5457 or mpf102 transistors.

    ReplyDelete

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