Mixing two fuzzes as in the DOD Punkifier...

[brad]

I was just thinking about how the DOD Punkifier mixes two types of fuzz together, and was wondering what the simplest signal path to pull this off looks like in the DOD Punkifier...

http://files.muziq.be/schematics/dod_fx76.gif

Does it go:  input buffer >> split the signal to both fuzzes >> mix them with potentiometer >> output buffer

[Mark Hammer]

Yes.  Not at all different from what happens in the typical phaser, flanger, chours, or delay pedal: buffer, split, process seperately, recombine.

[brad]

Thanks Mark.  The reason I was wondering is because the way I thought you'd have to do it would be:

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               /-->> buffer >> fuzz 1 >> buffer --\
split input --                                     -- mix pot >> out
               \-->> buffer >> fuzz 2 >> buffer --/


Whereas in the Punkifier it seems to be:

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                         /-->> fuzz 1  --\
buffer >> split input --                  -- mix pot >> buffer >> out
                         \-->> fuzz 2  --/


I want to experiment with mixing different fuzzes like this...but I don't know whether to follow DOD or my instincts lol.

[Mark Hammer]

The first question to ask is "What is it that needs buffering?".  In the case of the Punkifier, it is simply the input and output.

There are many instances where the output is not buffered either.  Usually that is the case where a distorted and clean signal are blended in some manner. Examples include the Voodoo Labs Sparkle Drive, John Hollis' Omnidrive, the Ampeg Scrambler, and my own Rosey-Ray (though that blends between a lightly clipped and heavily clipped signal).

The tricky part will lie in assuring the sorts of outputs from the two "channels" that permit effective blending.  For instance, if you had one channel with a pair of LEDs for clipping, and a second with a pair of GE diodes for clipping, their respective output levels would likely be so imbalanced as to make a 50/50 blend only possible within the first 5-10% of the blend pot's rotation.  Not much dialability there.

[brad]

I see. 

In that case, I'll start with the two fuzz sections and see where things go.  I see that the buffer  on the Punkifier's input really doesn't have anything to do with the fact the signal is being split, so...I guess it's even less involved as I though it was.

[Paul Perry (Frostwave)]

I can't help feeling that if I were mixing two fuzzzes, I would provide a way to reverse the phase of one of the fuzzes. So you would have the option of cancelling out much of the fundamental.
Like with twin pickup guitar switching setups.
of course you would need to be able to make up the lost volume.

[Solidhex]

Haha

  No way. That's the first mention of the Punkifier I've seen. Not a bad pedal actually. Menace, spike, slam, and punk.

--Brad