Death by Audio - Fuzz War  [traced]

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.
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gena_p1
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Post by gena_p1 »

are you sure about 680n ceramic caps? m'be they are standard 100n?

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xampworshipx
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Post by xampworshipx »

So after actually playing one of these, I can say with 100% certainty that I can make better pedals than this.

The volume knob literally does nothing.

The tone knob works from about 7 to 8:30 and then has no discernible affect on the sound.

Cheaply made garbage that does nothing.

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Space Jm
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Post by Space Jm »

Hello xampworshipx,

Did you try the original "Fuzz war" or a clone you did on your demo board ?

Because it could be very different, not sure the schematic is 100% accurate.
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John Lyons
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Post by John Lyons »

Hmmm
The original one I had didn't work like that.
The tone control had a wide range with some
semi parametric sweep type sounds.
Big fuzz and a lot of different tones.
Not for the weak but that's implied.

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waldganger
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Post by waldganger »

Space Jm wrote:Hello xampworshipx,

Did you try the original "Fuzz war" or a clone you did on your demo board ?

Because it could be very different, not sure the schematic is 100% accurate.
i've been reading all... and it seems like everybody here has problems bulding it :hmmm: ... maybe the schem is the key...; i've not a single idea about tracing circuits (from the photos), eagle's neither... i cant help it. BUT, im sure i love this pedal badly; and i wanna build it...

does anyone succeed whit this pedal?... new verob. or schem?... it would be great !!!


ps. (i damn myself for my poorly knowledge :scratch: )
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xampworshipx
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Post by xampworshipx »

I was referring to the real one. Tried it with a jcm800 and a les paul at a guitar shop near me. Was not stoked.

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poodlebra
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Post by poodlebra »

i bought in a bunch of 5089's so i could make this. got some for sale for any UK'ers who want to have a crack. ebay user: chakkaboom

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RnFR
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Post by RnFR »

good luck! i'd definitely breadboard first.

btw- i pulled my layout, as it seems that there are problems with it.
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Brainbender
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Post by Brainbender »

flood wrote:ok, here we go: here's the .sch and .brd files. Format is Eagle 5.0.

i'm not that good with PCB design, so please feel free to correct any mistakes in the layout (and be kind!).

don't know when i can actually get this up and running though, have moved back home recently and don't have materials or space to do this sort of thing right now.
has anyone tried this? is it verified? I see there's lots of 430k resistors, and reading all this i see that they should be 820k?
How can I export just traces in an Eagle? :scratch:
Attachments
schematic.png
schematic.png (9.99 KiB) Viewed 3757 times
PCB.png

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the_ungod
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Post by the_ungod »

Does anyone has a sucesfull build?

Is this schematic verified?

Thanks

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Post by gigelmargel »

the_ungod wrote:Does anyone has a sucesfull build?

Is this schematic verified?

Thanks
I've built it sometime ago, but it never worked as in the demos...too gated and too much noise...I ended trying to bias the transistors one-by-one, replacing all 100K/180K/430K resistors from the emitters/colectors with trimpots, but no luck at all.

I am very interrested about it, because the demos sounds very killer!

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Post by the_ungod »

gigelmargel wrote: I am very interrested about it, because the demos sounds very killer!
Yes it does.... :shock:

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celadine
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Post by celadine »

I breadboarded it (a year ago or so) with all different transistors for kicks. Didn't excite me, it sounded like two Big Muffs 'stacked' together. Shrug. But it did work.

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Post by gigelmargel »

celadine wrote:I breadboarded it (a year ago or so) with all different transistors for kicks. Didn't excite me, it sounded like two Big Muffs 'stacked' together. Shrug. But it did work.
do you have mnore details?

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Post by the_ungod »

???

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celadine
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Post by celadine »

gigelmargel wrote:do you have mnore details?
What would you like to know about?

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Post by the_ungod »

How to make it work!lol

Cheers

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gigelmargel
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Post by gigelmargel »

celadine wrote:What would you like to know about?
What transistors have you used and how you biased them (if you did that)...some voltages would be useful, but I think that you disassembled it.

Thank you!

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Post by celadine »

I used a bunch of different junk transistors pulled from different stuff. All reversed. I used 390k resistors instead of the weird 430K, only because of laziness. Otherwise built according to Analog Guru's schematic. It might be good to use medium gain transistors in this, instead of super high gain types, cause the ones I used were all probably 100-300 hfe. Because of the horrible, cross-your-fingers biasing of this pedal, its a miracle if any sound comes out of it. Good luck! :block:

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Post by gigelmargel »

celadine wrote:I used a bunch of different junk transistors pulled from different stuff. All reversed. I used 390k resistors instead of the weird 430K, only because of laziness. Otherwise built according to Analog Guru's schematic. It might be good to use medium gain transistors in this, instead of super high gain types, cause the ones I used were all probably 100-300 hfe. Because of the horrible, cross-your-fingers biasing of this pedal, its a miracle if any sound comes out of it. Good luck! :block:
Thank you very much celadine!

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