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.

Friday, October 7, 2016

HipKitty Oxblood Distortion

 Here's your Fuzz Friday fix. I'm calling it a fuzz anyway since it's just a modded Fuzz Face with an input buffer and a treble cut control at the output. It's supposed to give the boxy sound of a cranked AC15. Here's HipKitty's description:

The Oxblood Distortion was designed to emulate the tone and response of an old Vox AC15 with added gain at the input stage. Unlike other Vox-like pedals which emulate the tone and response of the Vox AC30, only the Oxblood Distortion emulates a boosted AC15.

Unique to the Oxblood Distortion is it's ability to make a "large" amp sound "small" and in hyper-drive with the tone of the AC15.

Also unique to the Oxblood Distortion is it's controlled output. While other distortion pedals use greater than unity gain at output to alter the user's amplifier input stages, the Oxblood Distortion does not. This keeps the true tone and response of the effect intact throughout the initial preamp stage of the amplifier in use.

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5 comments:

  1. ROY ElectronicsJanuary 11, 2017 at 3:33 PM

    Verified! Very nice sounding distortion!
    Thanks for the layout and your amazing blog..

    Cheers!

    ReplyDelete
  2. UnknownJanuary 17, 2017 at 12:45 PM

    hi, its a beautiful distortion. i built it and work. but if i roll down the gain pot its muted like volume pot, and the hum very noisy. what the problem? thanks

    ReplyDelete
    Replies
    1. Effects LayoutsJanuary 17, 2017 at 12:51 PM

      Not sure about the hum. But the Gain pot in this effect is supposed to cut the signal if turned all the way down. If you don't want it to do that, put a small value resistor (470Ω-1k) between lug 1 and ground.

      Delete
  3. BucksearsOctober 7, 2023 at 3:53 PM

    Finally got around to rebuilding/testing & boxing this one up again. Built one years ago and wrote it off as a 'cocked-wah in a box'. I used high(er) gain 2N5088s the first go round. This time, I measured out some 2N4401s in the 295-305 hfe range; lowest-to-highest in Q1 thru Q3.
    MUCH better-sounding than the 2N5088s. Just my opinion, but this pedal interacts better with single-coils vs humbuckers. It can go from clean-ish drive to crunch to borderline fuzz; overall a 'loose', nasty drive, in a good way.

    ReplyDelete

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