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DIY Stompboxes => Building your own stompbox => Topic started by: fuzzymuff on March 08, 2013, 08:59:36 AM

Title: Building Fuzz Pedal From Old 60s DuoFuzz Schematic
Post by: fuzzymuff on March 08, 2013, 08:59:36 AM
I happen to find this online and want to breadboard it first.  There are two pots, 56kb and a 50k, assuming its a log since no indicator whether log or linear.  Do assume the lug orentation from left to right is lug 1, 2, and 3 since there are no notations otherwise?

Here is an article on this rare fuzz pedal.

http://www.thegigrig.com/acatalog/Duo_Fuzz.html

(http://www.gear-review.co.uk/reviews/duofuzz/fuzz_4.jpg)
Title: Re: Building Fuzz Pedal From Old 60s DuoFuzz Schematic
Post by: Mark Hammer on March 08, 2013, 09:19:25 AM
You know it's a Univox Superfuzz, right?
Title: Re: Building Fuzz Pedal From Old 60s DuoFuzz Schematic
Post by: fuzzymuff on March 08, 2013, 10:40:03 AM
You know it's a Univox Superfuzz, right?

Yea??????

Thanks for pointing that out. 
Title: Re: Building Fuzz Pedal From Old 60s DuoFuzz Schematic
Post by: Mark Hammer on March 08, 2013, 11:43:08 AM
The Superfuzz circuit has shown up, sometimes with small variations, in many different guises under many different brands and names.  But underneath, its the same basic circuit.

I note this not to deflate your interest in it, or embarrass you in any way, but to draw attention to the fact that if you have to make some component choices, or need debugging info, looking for info on the Superfuzz here will bring you all the useful information you could want.
Title: Re: Building Fuzz Pedal From Old 60s DuoFuzz Schematic
Post by: digi2t on March 08, 2013, 12:24:51 PM
The Superfuzz circuit has shown up, sometimes with small variations, in many different guises under many different brands and names.  But underneath, its the same basic circuit.

I note this not to deflate your interest in it, or embarrass you in any way, but to draw attention to the fact that if you have to make some component choices, or need debugging info, looking for info on the Superfuzz here will bring you all the useful information you could want.

+1 on that. Mark's a righteous dude. If it were not for him, I would still believe to this day that the Foxx Guitar Synth was something special, instead of now knowing it as a ripoff of the Mutron III.  :icon_mrgreen:

BTW, Superfuzz, great circuit. Always loved the sound of it, in all it's machinations.
Title: Re: Building Fuzz Pedal From Old 60s DuoFuzz Schematic
Post by: LucifersTrip on March 08, 2013, 04:30:34 PM
a very clear schematic that many use is this...
http://3.bp.blogspot.com/-cBIzyse_wes/T0EHt4QmTvI/AAAAAAAAA88/Y1fbps_nMsQ/s1600/univox_superfuzz_schematic.gif

but the cool thing about the one you found is that it has the polarity of the electros marked
Title: Re: Building Fuzz Pedal From Old 60s DuoFuzz Schematic
Post by: fuzzymuff on March 08, 2013, 08:19:12 PM
The Superfuzz circuit has shown up, sometimes with small variations, in many different guises under many different brands and names.  But underneath, its the same basic circuit.

I note this not to deflate your interest in it, or embarrass you in any way, but to draw attention to the fact that if you have to make some component choices, or need debugging info, looking for info on the Superfuzz here will bring you all the useful information you could want.

No pun taken, and thanks for informing me about the the pedal being similar to the super fuzz.  Thanks!!