Fuzz Clipper

[newfish]

So - recently completed a tone Bender copy (from RG's excellent 'Technology of the Fuzz Face' article.

http://www.geofex.com/fxtech.htm

The schematic is towards the end of the article, and gives a solid chunk of fuzzy goodness.

One or two mods - I put a 10ohm resistor between the 'Gain' pot lug (3) and the 820 ohm resistor to get rid of the 'fizziness' when the gain was maxed out (as it should almost always be...)

Different input / output caps to taste as per usual...

...also, I put a clipping stage on the output.

Just after the 0.0033uF cap, I added the 'standard' clipping - as in - one diode from signal to ground, one from ground to signal - wired to a SPST switch - so I can put an element of clipping in the mix too.

This gave a noticeable volume drop - only to be expected really, since the signal's outer peaks are being shaved off.

So... I added a 0.01uF cap onto the switch - which in my mind means that only the top portion of the signal gets clipped.

So with the switch connected, I got me a fuzzy bottom and a clipped top end - I think... Is this about right?

[petemoore]

  Sounds about right.
I liked that effect

[Caferacernoc]

"So... I added a 0.01uF cap onto the switch - which in my mind means that only the top portion of the signal gets clipped.

So with the switch connected, I got me a fuzzy bottom and a clipped top end - I think... Is this about right?"




Yup. I like that trick too.

[DougH]

I'm not following completely. Is the cap in parallel with the diodes?

[Derringer]

I'm thinking they would have to be in series so that only the high frequencies would pass thorugh the diodes.

Is this right? Or should the cap go between the diodes and ground?

[Caferacernoc]

I thought he was talking series also. Like the above post. It's a cool trick I think. I've done it on MXR+ style for cleaner bass.