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, March 14, 2019

Yamaha DI-01 Distortion

This is currently on hold till I figure out the tone control issue or someone can shed more light on this circuit. Build at your own risk.

I stumbled across the schematic for this effect and thought it was another variation of the Marshall Bluesbreaker circuit. But realized it actually predates the Marshall circuit by several years. Korg made a re-labeled version for Yamaha, the DI-01, and both still fetch decent prices. Apparently they were built like tanks. Sounds pretty decent too. Not sure what clipping diodes were used, but 1N4148s are probably a good place to start. Easy fit in a 1590B.


at
Labels: , ,

16 comments:

  1. UnknownMarch 14, 2019 at 9:53 AM

    Korg DST-1 is made with AN360 opamp and all diodes are 1S1555....Dist pot is 500KA, Tone pot is 200KC and Output level pot is 10KB...I can send you schematic which is a bit compexier than this one...

    ReplyDelete
    Replies
    1. ozzyMarch 16, 2019 at 6:15 AM

      please, can you provide the schematic? i am really interested in building this.

      Delete
    2. UnknownMarch 19, 2019 at 7:36 PM

      https://drive.google.com/open?id=1LksSLDgDyhC4ip-8jXThiHPwxEKSdXI9

      Delete
    3. ozzyMarch 19, 2019 at 9:07 PM

      perfect! many thanks, milos

      Delete
    4. UnknownMarch 22, 2019 at 3:19 PM

      you're welcome ;)

      Delete
    5. UnknownMarch 22, 2019 at 3:26 PM

      Here is some pcb layout of dst-1...it's bit simplyfied (excluded power supply part) but it has some upgrade in clipping stage...
      https://drive.google.com/open?id=1amCVkl95UtsbzmQsam2HHnyPEfBsUHWw

      Delete
  2. PeteMarch 14, 2019 at 11:11 AM

    I built this on perf. The pedal seems to work, minus the tone pot. Doesn't seem to do anything at all.

    ReplyDelete
  3. Miko1512March 14, 2019 at 5:02 PM

    can you do a layout of the vemuram jan ray OD? its £325 new, and that's really expensive, here's a schematic, http://revolutiondeux.blogspot.com/2013/04/vemuram-jan-ray-overdrive.html
    the schematic is near the bottom of the page. thanks.

    ReplyDelete
    Replies
    1. ZZOYDMarch 14, 2019 at 5:08 PM

      dont you miss? https://effectslayouts.blogspot.com/search?q=vemuram

      Delete
    2. Miko1512March 17, 2019 at 10:24 PM

      Huh, I didn't know he made a layout for it
      4 years ago, I didn't see vemuram in the brand area

      Delete
    3. ZZOYDMarch 18, 2019 at 2:14 AM

      на здоровье!

      Delete
  4. PeteMarch 15, 2019 at 2:27 PM

    I was able to get some sort of tone control by doing the following: Swap pins 1 and 3 of the tone pot, and then pin3 of tone to pin 2 of volume. I have no idea what that does to the circuit electronically...but it sounds (sort of) like a tone control.

    ReplyDelete
  5. ozzyMarch 16, 2019 at 6:14 AM

    This comment has been removed by the author.

    ReplyDelete
  6. UnknownMarch 19, 2019 at 3:14 PM

    tone doesn't work

    ReplyDelete
  7. nhatkicuahuyNovember 7, 2024 at 12:36 AM

    This comment has been removed by the author.

    ReplyDelete
  8. nhatkicuahuyNovember 7, 2024 at 12:43 AM

    I have this pedal, all pot values you posted is incorect, Tone is C200K, Out Level is B10k, Distortion is A500k

    ReplyDelete

Subscribe to: Post Comments (Atom)