I want to build axis fuzz

[JebemMajke]

Hello



I wanted to make this fuzz. I made all sorts of fuzz faces, muffs and others but I have never ever tried my hand on one of these.

Is there a catch? How about rebiasing transistors, is it necessary, and which resistors should be replaced with trimpots? Which voltages are relevant here?

How about that mod ( parts in red )?

I am all ears here

[Kipper4]

Not a fuzz kinda guy but I did like the axis fuzz and axis face and the tres hombres fuzz.

Worth a build in my book.

I guess it depends on you, if you put the low pass filter marked in red. I prefered it without iirc

[idy]

It's a really nice member of the fuzz face family. No need to mess with bias as it's silicon.

It's a very weird circuit though with the complimentary PNP NPN that way, and the feedback. Twisted on it's axis.

The optional LPF is not that important. You can leave it off or not. I've made a few with a pot and a cap there to make a tone control. I had to use 66nf and 50k to make a satisfying range.

[antonis]

For a self-respecting Fuzz, I'll scale 820k & 680k resistors by 1/10 (for more signal loading), maybe halve 220R value (for even more signal loading and less stable Q-point)  and delete 2M2 resistor (for all time classic "popping")..

[jgenet99]

I love this pedal, strongly recommend building it. It's not too difficult, I've not had to make any adjustments to it.

You should know that the parts in red aren't really mods... there are actually at least two versions of it (meaning that Roger Mayer built and sold).

You should know that this pedal really needs to be paired with the right amp. Every guitar pedal is like that, but this one more than any pedal I've ever used. You definitely want to play it into something that's already distorting, and you'll just have to try it out different ways. I've found that following it with the DOD 250 as a dirty boost will seem to make it work with many amps that it doesn't sound good with otherwise. In particular, a lot of the lower settings will make a weird, rattling sound on several amps I've used (seems to do it with Fender amps) but if you pair it with the right overdrive pedal it smoothes that out. You just have to be patient with it and try it with different units. I'm a big one for using guitar volume knob, and Axis is pretty responsive. It also is fine following a buffer (which is awesome) and supposedly works following wah pedals. I've noticed a lot of players like to play it turned way back like an overdrive, because when you get it paired correctly, it's great with shaping the guitar tone.

Good luck with it!