Welcome to the Revolution

Hi there, welcome to my blog - La Revolution Deux. It's an odd name - but I like it! Here you will find all the info on my various DIY Guitar effects builds, amplifiers and guitars. Everything from a humble Ibanez tubescreamer to the holiest KLON Overdrive.

You may also find a few effects builds that I am looking to move on - usually in exchange for other effects/gear/cash. You can always check my ebay account to see what I've got up for grabs.

Have fun, enjoy the blog - Fred Briggs :-)


Feel free to get in contact with me about anything you see on this blog or with any general questions about guitars, amplifiers and effects, I'll be happy to answer! Just click the button above to email me directly or alternately my email address is fredbriggs2007 [at] googlemail [dot] com

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Monday, 9 January 2012

Zvex - Box of Rock

Here is one that I get emailed about quite a bit - full project for download here; http://www.mediafire.com/?r136bveqr9mdjy2 [NOTE on the schematic C7 is listed as 100n, it actually needs to be 10n]

It's an ex-madbean project - go visit his f**king brilliant site here for loads of DIY goodness; http://www.madbeanpedals.com

Here is a schematic for reference:

You'll notice it's his "signature" Super Hard On circuit (Which is a great building block!) cascaded into one another. The tone control is a derivative of the classic Big Muff setup (But the actual values are nicked from the well known DIY project the "Brown Sound in a Box II" (BSIAB for short). Interesting really.

Here's your demo video:


  1. This mediafire link is to a pdf for a krankosaurus. Is there one for the Zvex?

  2. The Krankosaurus is a Box of Rock, it's just what madbean decided to call the project.

  3. Oh, thanks for letting me know

  4. i used the above schematic, plotted in eagle in a late-night daze, to produce my BOR pcbs. didn't even question the series-resistors. doh! never mind, just means there are four extra resistors on my boards and my face is slightly redder than normal :)

  5. how to wire the footswitch ??
    please ...

  6. What software did you use to draw the schematic?


Comments are welcome on Revolution Deux. However, please do not spam links to unrelated sites - these comments will be removed! Thanks - Briggs.