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Thursday, August 29, 2019

OKKO Diablo+

The Diablo is a modified BSIAB circuit and the Diablo+ version has an added boost at the output that's independent from the main overdrive circuit. I've laid it out for a 125B with top mounted jacks for a nice small footprint. Originals have a switch to run at 9 or 18 volts which I've left off-board so builders can choose their preferred voltage doubling method. Trim pots are extra controls, not for biasing, FYI.



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10 comments:

  1. Desde la cima del rockAugust 29, 2019 at 10:05 AM

    Excellent.
    I was waiting for him for a long time
    Thank you

    ReplyDelete
  2. ZZOYDSeptember 12, 2019 at 2:35 PM

    Verified!I was bored, did not solder for a long time any pedals! Nice pedal, you get separate booster, over & both together! Just using 2 3PDT. Thanks, David, great work! I even boxed it!
    There is https://imgur.com/a/Gc68cVc

    ReplyDelete
  3. ZZOYDApril 9, 2020 at 1:18 PM

    So i have this one often using pedal! I realy like it!

    ReplyDelete
  4. AnonymousJune 22, 2020 at 2:05 AM

    This comment has been removed by the author.

    ReplyDelete
  5. AnonymousJune 22, 2020 at 2:17 AM

    It's work... But how to connect in+ and out+...???

    ReplyDelete
  6. DedaloAugust 21, 2020 at 11:02 PM

    Im from argentina, i made this few years, those days i find another pcb, my problem was, when i put full gain sound cool but at the end i could heard a noise. solution : change diferets fets j201, j201, 2n5457, j201, 2n5457. with the boos stage dont have trouble.

    ReplyDelete
    Replies
    1. MaisiOctober 20, 2020 at 8:12 PM

      Grande Dedalo!. Here also from Argentina... So let's continue in English so it is understood by all. What you suggest to avoid noise at maximum gain is to replace the Q3 and Q5 fets with 2N5457? Thanks

      Delete