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, November 6, 2015

Roger Mayer Axis Fuzz

For #FuzzFriday here's Roger Mayer's Axis Fuzz, and it's the 100th fuzz effect on the blog. Maybe I should branch out more... It was designed by Roger in the late 60s for Jimi Hendrix, and is named after the title track of "Axis Bold as Love." It uses a PNP silicon transistor for Q1 and NPN silicon for Q2. So while it will give you some Hendrix-style tones, it isn't quite a Fuzz Face. The schematic can be found here.


  1. Thanks for posting this layout. I build this one and it has good gain, but it sounds too much compressed like zvex fuzz factory when it compressed / too much attack although the pots are all up. I used 2.2uF tantalum cap and 470pf standard ceramic, I changed the volume pot with B10k because it didn't work with A50k. thanks!

  2. I recommend replacing the 47k res with a b50k pot (as variable resistor).
    ±25k can clean more and give another kind of response

  3. What size enclosure should I use for this pedal?

    1. It’ll fit in a 1590B or anything larger than that.