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.


14 comments:

  1. 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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    1. 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.

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  2. 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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    1. 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.

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  3. Hi, can I wiring this pedal in true bypass?

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    1. 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.

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

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

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

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  6. 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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