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, August 17, 2015

9v to 18v Charge Pump

Most effects run off 9 volts, but a lot of them can run off 18. The Fulltone OCD, Earthquaker Devices Monarch, and the MI Audio Crunch Box are just a few examples. If you don't have an 18 volt power supply and want to get some different sounds and more headroom out of an effect, try this charge pump daughter board. It won't get you all the way to exactly 18v, but should get you pretty close. You could build it into a 1590a to have an (almost) 18 volt power supply, or build it into a pedal with a switch to toggle between 9v and 18v supply.



Note: Always check with the manufacturer if your pedal will run off 18 volts before you use this circuit. I am not responsible for any blue smoke, fire, cursing, and/or broken effects that may result from improper use of this layout. :D
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16 comments:

  1. UnknownSeptember 19, 2015 at 9:34 PM

    Hello, has an error (at the output of integrated pin 2) I solved it with a bridge. Greetings!

    ReplyDelete
  2. Scott WestNovember 16, 2015 at 12:14 AM

    Why are there 2 9v+ holes? What is the point of the extra ground holes?

    ReplyDelete
    Replies
    1. dtgehringNovember 16, 2015 at 9:14 AM

      Cuz it doesn't hurt to have extras in case you need them.

      Delete
    2. BerkicauMay 22, 2016 at 4:04 PM

      I love this reply the most :D

      Delete
  3. )-(June 18, 2016 at 6:34 PM

    Just noticed that the pcb layout here and in the transfer library don't match.

    ReplyDelete
  4. UnknownNovember 19, 2016 at 6:20 AM

    There is still a missmatch!

    ReplyDelete
  5. MBNovember 21, 2016 at 5:58 AM

    I have found some ICL7660, Can I use it instead of MAX1044?

    ReplyDelete
  6. MBNovember 22, 2016 at 10:04 AM

    Thanks a lot!

    ReplyDelete
  7. BerkicauMarch 1, 2017 at 1:58 PM

    It works, but I highly recommend that you guys using MAX1044 instead of ICL7660.

    ReplyDelete
  8. UnknownDecember 18, 2019 at 3:46 AM

    done this and i've got 8.5 volts, instead of 17-18 volts,whats the problem?

    ReplyDelete
  9. PavolJanuary 12, 2021 at 12:55 PM

    How much current this pump can deliver?

    ReplyDelete
  10. RevJuanOctober 29, 2022 at 11:27 PM

    Perhaps a dumb question but would there be a simple way to add a 12v output also? Switchable would be ideal.

    ReplyDelete

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