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.
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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!
ReplyDeleteI recommend replacing the 47k res with a b50k pot (as variable resistor).
ReplyDelete±25k can clean more and give another kind of response
What size enclosure should I use for this pedal?
ReplyDeleteIt’ll fit in a 1590B or anything larger than that.
DeleteHello ... Does anyone know Hfe values of Q1 and Q2 from the original RM?
ReplyDeleteHello for me
DeleteQ1 3906 HFE=175
Q2 3904 HFE=288
I hope that helps
In this circuit hFE is not critical. This isn't a Fuzz Face.
ReplyDelete