Fuzz face - tone control?

[BramcoteLorne]

hello all,

finally made a pedal I am semi happy with the sound of

it's a fuzzface (some where between standard and the mayer mods)

I was interested in adding a tone control to it so I could get a bit of a Big Muff scoop vibe going on with it.

I've seen the schem for the tone part of a big muff floating around in the simple mods bit, but where does it need to go exactly in the FF ckt and will I need to make any mods to the rest of the ckt to fit it in?


thanks in advance,


dave.

[RickL]

I tried tacking a Big Muff tone control onto a Fuzz Face once and while it worked I was a bit disappointed with it. It ate enough gain that the pedal was pretty much only usable with both the Gain and Volume cranked.

I tried adding a gain recovery stage after the tone control (I used the LPB-1 circuit but the last stage in a Big Muff should work at least as well if not better) which was better but it started to sound less like a Fuzz Face with a tone control and more like a 'generic' fuzz to me.

It's certainly worth a try and should only take a short time to build.

A little off topic, but your post got me thinking about it... I built a Big Muff without the two middle gain stages (I called it a Muff Tone) that amounts to a cleanish boost with a Big Muff tone control. It's not too bad for use as a semi-clean bass boost or mid scoop boost.

[petemoore]

Tone control on perf, then you can try it with whatever cct you want...but
 Passive TC's take power to operate, A buffer before takes care of that...but
 FF won't sound the same with a Buffer and TC on it.
 You might like it...others have tried it, and I don't think anyone stuck with that.
 A ff has a voicing to it anyway, you can roll off lows with input or output cap, and roll off highs by shunting them to ground with a small value capacitor [or between Q2 B/C].
 If you use small input cap [HP Filter] that cuts lows.
 If you use a shunt cap you can certainly cut highs....what's left is mids.
 You could try a notch filter if you want a mid scoop...but...that will lower output also.
 Not to say any of these is not worth trying, I just recall reports [I wanted to do the same thing] of nominal returns with trying to TC a FF.
 I think there's a circuitwith a FF in it, and tone control around here somewhere,Ill go look.
 EZ Face with Input Blend Cap Mod. Just changing the input cap value will rolloff lows more or less.

[amonte]

Not sure if this helps you much, but last night I added the pre gain and input cap blend from the Easy Face to my Vox Tonebender RI.  It maes the pedal MUCH more versatile.  I'm going to also add a pot with a cap shunt to ground at the end of the circuit.

[petemoore]

ColorSound Overdriver...has a FF 'in it [feedback amp LIke FF anyway...Modded FF or what] , has plenty of output, has great sound, has Tone Control. I tried it, built a bad one. Didn't last Cuz I was buildiing it wayy too Tight etc. Might just have to try another of these.
  What Amonte has going sounds pretty cool, Probly works great and is pretty easy to do.
 For a TC 'leaning on' FF to get past unity , I think it'll take another transitor.
 IF all you want is some high end roll off or tone shaping...this can be done with the caps on the schematic [changed values] or by adding capacitence to the circuit.

[BramcoteLorne]

wow, a ton of ideas!

I'm liking the idea of the input cap blend, I think I'm gonna do that first as it seems pretty easy, I've searched and found a ton of info on it.

Why is it a better idea to do this with the input cap than the output one? is it just a case that it has more of an effect or is there another reason?



dave.