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.

Wednesday, August 16, 2017

Simple CabSim

Came across this design in researching a different project and thought I'd draw it up. It uses 3 transistors and doesn't take up a lot of space, so you should be able to fit it in a 1590A or add it to another pedal. More info can be found here. Sounds like you can use pretty much any medium-high gain PNP/NPN pair for Q2-3 (2N5087/2N5088, BC560/BC550, etc).

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13 comments:

  1. neal gardnerAugust 17, 2017 at 7:18 PM

    Broken link in your description.

    ReplyDelete
  2. UnknownAugust 19, 2017 at 11:53 AM

    Mark it verified!! Sounds pretty good. Anybody know how I would go about increasing the volume. I tried a NOS 2n5060 and it gave me a signal but was about half the volume of the j201s. I got the j201s from guitarpcb.com for an upcoming sunn-t build I need to finish.

    ReplyDelete
  3. Michael GalanSeptember 3, 2017 at 10:20 PM

    So i use this in the Effects loop or infront of an amp.

    ReplyDelete
    Replies
    1. Effects LayoutsSeptember 4, 2017 at 7:00 PM

      I feel like this is best suited for when you're recording without an amp or playing into a headphone amp. But for a live rig, I'd try it in both places and see what sounds better to your ears.

      Delete
  4. RaponiMarch 13, 2018 at 12:23 AM

    I'm considering boxing up one of these together with a noisy cricket 1/2W amp. Should i run the noisy cricket before or after the cabsim? Would the amp output would be too loud for the cabsim input?

    ReplyDelete
  5. UnknownJune 9, 2018 at 9:20 AM

    Schematic link?

    ReplyDelete
  6. Marble IndexSeptember 12, 2018 at 1:51 PM

    What type of 1uF cap?

    ReplyDelete
  7. jandalesandsMarch 17, 2020 at 10:32 PM

    can i request for a noisy cricket mkII? it would be helpfull for us all.. thanks in advance mr.david.. 😄😄😄

    ReplyDelete
  8. DeivSeptember 11, 2023 at 2:27 PM

    i builded to put it into a diezel vh4 pedal and it sound better than others IR from my computer. I use mesa 4x12 IRs and this can be ecual or better...

    ReplyDelete

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