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Kay Fuzztone

This is a great fuzz pedal. You can hear it on the opening to U2′s elevation and on Daniel Lanois’ song “Kay Fuzz”. I used a 2N5088 for Q1 and 2N3904′s for Q2-Q4. I used 1N914′s for the diodes.

Download Build Diagram
Download Etch Template
Download Schematic
Interior Photo

Kay Fuzz

This entry was posted on Wednesday, June 6th, 2007 at 3:00 pm and is filed under Projects. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

8 Responses to “Kay Fuzztone”

  1. Rich Says:
    May 5th, 2008 at 8:29 am

    Hi,

    I’m interested in building one of these for myself. I had one of these pedals a while back and unfortunately sold it to fund some other equip.

    Your project seems straight forward to build and I was wondering if you’d be willing to help me by sharing your experience, parts list, etc.

    Thanks,

    Rich

  2. marcos antonio bezerra de carvalho Says:
    December 4th, 2008 at 8:27 pm

    I make this project identic the your layout. That’s Wonderful!!! Thank you!!! I thought that transistor was critic component, however the resistance in series with 47k potenciometer that was.

  3. Aaron Says:
    January 29th, 2009 at 3:29 pm

    Hey I’m in the process of making this, does anyone know what the RLED value would be for an Orange LED light??

  4. Jeff Says:
    March 19th, 2009 at 6:49 am

    Orange Led needs a voltage of 2.1 volts. You can use the resistance between 100R and 380R, depending on how bright you want it. The less resistance the brighter it will burn. However, don’t make it too low or you will burn the led, maybe not imimdiately but in the future.
    Well, hope this could help.

  5. captaincro Says:
    December 16th, 2009 at 10:55 am

    hey man,

    great job, My projectis the same than you ?
    What is please the tall of the circuit ?

  6. JW Says:
    February 18th, 2010 at 4:18 pm

    so, is this a good one? i have heard two different sounding clones before. i have heard one that was spot on, but then i have also heard ones that are darker and dont sound like they should.

  7. captaincro Says:
    February 20th, 2010 at 3:31 am

    Hey man,
    Where did you find you 50k potentiometer ! I can’t find it anywhere !
    Help me please, that is the only component I miss !!

    Thanks !

  8. Douglas Says:
    August 24th, 2010 at 6:36 am

    I built one of these for a friend a while ago, and used the stock pot of his old crybaby, and it worked like a charm!

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