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, April 27, 2015

Krank Distortus Maximus

This was a request. It's another 386-based distortion, similar in theory to the DAM Sonic Titan. Transistor-based "preamp" section which is amplified by the 386 "power" section, follwed by a 3-band tone stage on the output.



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22 comments:

  1. MaurusJuly 11, 2015 at 5:36 PM

    works!verified!

    ReplyDelete
  2. MaurusAugust 3, 2015 at 10:06 PM

    https://www.youtube.com/watch?v=uA8_2ZRjS_U
    this is mine build!

    ReplyDelete
  3. UnknownAugust 23, 2015 at 10:46 PM

    you can see the demo https://www.youtube.com/watch?v=mFSUnGlAsqU

    ReplyDelete
  4. AnonymousSeptember 15, 2015 at 9:09 PM

    Mid, bass and treble don't work. Can someone help me?

    ReplyDelete
    Replies
    1. dtgehringSeptember 16, 2015 at 10:19 AM

      It could be any number of reasons. Got any pics of your board?

      Delete
    2. AnonymousSeptember 16, 2015 at 2:45 PM

      https://www.flickr.com/gp/136288675@N05/2v7453

      Delete
    3. AnonymousSeptember 16, 2015 at 2:49 PM

      I had forgotten to tell, some resistors were replaced. I used 39k in 43K, and 430K I used 390k. This could be the problem?
      (sorry for bad english, i'm using translator)

      Delete
    4. AnonymousSeptember 17, 2015 at 6:48 PM

      Can someone help me?

      Delete
    5. tothMarch 14, 2023 at 7:32 PM

      tengo el mismo problemas, lo pudiste solucionar?

      Delete
  5. fredJanuary 14, 2016 at 9:37 PM

    which components are changed to transform into the ProTone Body Rot II ?

    ReplyDelete
    Replies
    1. Effects LayoutsJanuary 26, 2016 at 10:09 AM

      Finally found a schematic of it, and while it's really close, the tone section is a bit different. So this layout won't work for it. I'll add it to the list though.

      Delete
    2. fredFebruary 2, 2016 at 4:01 AM

      thanks brother.

      Delete
  6. UjangJanuary 24, 2019 at 7:35 PM

    if the 4.2 mega in my place is hard to get, what can I use ... ??

    ReplyDelete
    Replies
    1. Effects LayoutsJanuary 24, 2019 at 10:14 PM

      That's the pulldown resistor, so anything 1M or higher.

      Delete
  7. MK12UJune 8, 2019 at 12:03 PM

    hey, has someone done it in pcb? which board dimensions did you use?

    ReplyDelete
  8. UnknownOctober 10, 2019 at 4:50 AM

    hello,bro.
    bass,mid,high could work
    but gain not work, is that lm386's problem?
    touch the input is same as ground

    thanks

    ReplyDelete
    Replies
    1. UnknownOctober 10, 2019 at 4:58 AM

      by the way, my LM386 is LM386 m-82 from China. need i change into LM386 n-3?

      Delete
  9. mettNovember 18, 2021 at 6:49 AM

    Hello.

    Does anyone know the dimensions of the pcb ?. They also have the list of components ?.

    Thanks from before hand.

    ReplyDelete
  10. mettJanuary 27, 2022 at 5:49 PM

    Hello.

    Not the pdf in the dropbox folder. Does anyone know if it is saved under another name or where I can download it.

    Thanks in advance.

    ReplyDelete
  11. tothOctober 20, 2022 at 1:31 AM

    Hello!, thankyou for share these squematic, i need help about the how connect the potenciometers.

    ReplyDelete

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