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bumblebee wrote:Turn the green part of the schem upside down and it looks almost identical to a fuzz face!

I understand what you are saying but there are a many circuits (not just the fuzz face or effects pedals for that matter) that use a similar technique. AG said something about it originally deriving from a microphone preamp with its negative feedback removed. I'm not sure what circuit he pulled that from? Maybe he'll chime in and link the schematic?

Bah! The only point in having a Fuzz Factory is to have a goofy fuzz that makes noises. I find its oscillations to be weak and puny.
If you want a REAL crazy fuzz, please check out my new TWMNBN fuzz!
viewtopic.php?f=13&t=4134
The Touch Me! controls on the TWMNBN make some of the most insane beautiful sounds. The only thing I've heard that does anything similar is the 4ms Noiseswash, and the TWMNBN does it with less than half the components. It's one of the most playable oscillating noise fuzzes on the planet!

soulsonic wrote:Bah! The only point in having a Fuzz Factory is to have a goofy fuzz that makes noises. I find its oscillations to be weak and puny.

There were a few fuzz settings that were, Ok? I can think of at least ten fuzz effects that are miles better with more functionality in that dept.

So it leaves it to be more a noise maker and I will have to agree with you Soul the mods are weak and basically useless. Not very well thought out. I read that Vex designed this in one night on his kitchen table and it shows. "I know what I'll do, instead of making spaghetti tonight I'll make a fuzz that looks like spaghetti tonight!".

I think I'll breadboard up your TWMNBN fuzz this weekend Soul. I've got some parts left over that need to be made use of.

vanessa wrote:

bumblebee wrote:Turn the green part of the schem upside down and it looks almost identical to a fuzz face!

I understand what you are saying but there are a many circuits (not just the fuzz face or effects pedals for that matter) that use a similar technique. AG said something about it originally deriving from a microphone preamp with its negative feedback removed. I'm not sure what circuit he pulled that from? Maybe he'll chime in and link the schematic?

Could be but to me it if it looks like a fuzz face it is a fuzz face. I could be wrong but....

bumblebee wrote: Could be but to me it if it looks like a fuzz face it is a fuzz face. I could be wrong but....

You miss the point. There's other circuits that use the same design. You could say it looks like Vox Tonebender, or a Solasound MK1.5? If you were going that route it would appear to be a hybrid of all three.

Actually, the whole circuit more closely resembles a TB MKII. Q1 has been changed to silicon and the necessary c-b biasing resistor is added. Of course a TB MKII is really only a boost in front of a FF, just like the Fuzz Factory.

http://fuzzcentral.ssguitar.com/mkII/mkIIschematic.gif

vanessa wrote:

bumblebee wrote: Could be but to me it if it looks like a fuzz face it is a fuzz face. I could be wrong but....

You miss the point. There's other circuits that use the same design. You could say it looks like Vox Tonebender, or a Solasound MK1.5? If you were going that route it would appear to be a hybrid of all three.

But I think the main point is that its not original design designed by zachary.

bumblebee wrote: But I think the main point is that its not original design designed by zachary.

True it's not entirely his design, and may not be his at all. But you do need to back your statements up with some amount of evidence, especially when you post a schematic with something stated as fact because it will be perceived as such. I know it does look like a fuzz face, but that section also looks like a lot of other circuits. Something I've learned from AG. He'll post several examples, time lines and what bits of information to prove his point.

PurplePeopleEater wrote:Actually, the whole circuit more closely resembles a TB MKII. Q1 has been changed to silicon and the necessary c-b biasing resistor is added. Of course a TB MKII is really only a boost in front of a FF, just like the Fuzz Factory.

http://fuzzcentral.ssguitar.com/mkII/mkIIschematic.gif

More than any of them the MKII would look to be the closest. Although his biasing of Q1 is more stable. The values for the rest of the circuit differ. Not to mention his own mods. Besides all that what stands out to me compared to the other designs is his choice of input and output caps. 10uf. Fairly large value allowing a lot of bass in, too much for me. I think this is done to compensate for his mods that thin out the signal. Had he went with lower values the pedal would have even more useless than it already is.

Well I'll happily change the schem to include other possible circuits too if the necessary information is provided to me.

No problem, it's all in the forum. Search, Vox Tonebender, Solasound MKI, Tonebender MKII. I think even the later silicon Vox tonebenders used the same circuit, including the silicon fuzz face. PM AG for info about the microphone preamp would be the best as I think this one predates all of the above. He might have posted it in a thread somewhere.

Hey guys, I'm new to the whole DIY effects thing and have wanted to build a Fuzz Factory for a long time now. For a few months i have planned to build one, looked at schematics ect.... My problem is that there are SO many different versions of the pedal that i don't know which one to pick. So my question is: What schematic should I use/where should i find it, and where can i get a full parts list? Thanks!

vanessa wrote:PM AG for info about the microphone preamp would be the best as I think this one predates all of the above. He might have posted it in a thread somewhere.

I have to correct myself a bit:
It is a typical mic-amp configuration, but it also has been used as an guitar ampifier input stage before - in the VOX T60 from 1963.

Below you find the schematic (without comp values). Remove R1 and add an electrolytic in parallel to R4 with the purpose to increase the gain and you have got..... a Fuzz circuit.

analogguru

FightinIrishPJ wrote:Hey guys, I'm new to the whole DIY effects thing and have wanted to build a Fuzz Factory for a long time now. For a few months i have planned to build one, looked at schematics ect.... My problem is that there are SO many different versions of the pedal that i don't know which one to pick. So my question is: What schematic should I use/where should i find it, and where can i get a full parts list? Thanks!

I'm not sure what you mean here, to my knowledge (please someone correct me otherwise) there is only on version of the fuzz factory. You may have seen someone's take on it, or a different layout, but to my knowledge Vex has used the same circuit from inception to current.

Barcode wrote:

FightinIrishPJ wrote:Hey guys, I'm new to the whole DIY effects thing and have wanted to build a Fuzz Factory for a long time now. For a few months i have planned to build one, looked at schematics ect.... My problem is that there are SO many different versions of the pedal that i don't know which one to pick. So my question is: What schematic should I use/where should i find it, and where can i get a full parts list? Thanks!

I'm not sure what you mean here, to my knowledge (please someone correct me otherwise) there is only on version of the fuzz factory. You may have seen someone's take on it, or a different layout, but to my knowledge Vex has used the same circuit from inception to current.

oh i know that there is only one way that vex makes his pedals, but i have seen multiple schematics that differ from eachother. For example i have seen a french version, a japanese version, a few posted in this thead ect. My question is, which one should I use? Has anyone had success building one and if so, which diagrams specifically did you use?

In short, i just want to have a 100% tested and working schematic before i buy my parts so that i can be successful in my project. What stuff do i need?

Knowledge, I presume!

I think if you want 100% guarantee, buy an original!

What i see is a lot of different layouts, almost any schematic posted on the net shows the same electronic project. I did one for me and it was exactly the same as the original in terms of electronical design and sounds. Recently I compared it with the guts of a new vexter. It's the same. Then i modded it to get my own customised sounds.

Man, if you re-read the post you will have no doubt about what to do!

hello all..i'm a newbie here..n i need help..

i just built a fuzz factory according to a schematic diagram that i found here,
https://solgrind.wordpress.com/2008/02/ ... z-factory/
it is the correct schem for anyone to built it DIY..
ive built it n it working correctly as the original one,and i got the fuzz tone,the oscilation n stuff..
but what makes me a headache is,the schem show me no switch at all..
so i have try 2 put the DPDT switch on it to "on" the pedal n bypass..
but it doesnt work,it can't do bypass..or maybe i put the switch at the wrong point..
so any one here willing to help to solve the problem??
i mean,using only the DPDT switch,not the 3PDT..

thank u..
cheers..

You can refer to Tonepad.com, project list, off-wiring connections.

You can use DPDT or 3PDT, but I advise you to use 3PDT for added LED status. I've found F.Factory not very friendly regarding Millenium bypass or input split one.

Mine uses a 3PDT with grounding input when bypassed.

Alex Frias wrote:You can refer to Tonepad.com, project list, off-wiring connections.

You can use DPDT or 3PDT, but I advise you to use 3PDT for added LED status. I've found F.Factory not very friendly regarding Millenium bypass or input split one.

Mine uses a 3PDT with grounding input when bypassed.

thank u..

now my fuzz factory are working just fine..
done the wiring,n got the tru bypass..
but i no need the LED indicator,so i just use the DPDT switch..

Hi Guys !
This is my first post here.
I'm a long time diy lover, but I never built a stomp box 'till the past week.
Now I think I'm addicted to this stuff... I just built a fuzz fucktory, a ross compressor, and a tube screamer is waiting for some parts.

I didn't wanted to post without giving a "little and modest" contribute so,
this is a reviewed version of the pcb layout published by i french guy (I guess) that I've modified to use 9mm alpha pots.
This saved me a lot of wiring and (tried the bredboard version first) and I was able to fit the battery inside a 1590B box.

Here is the "revisited" pcb layout: The "french" layout (the part designators match and you can wire it the same way) And here some pictures of my box (sorry for the quality) In the end I just want to thank you guys for the great work you do here !
And well.... sorry for my english...

Would there be a way to isolate the SHO in the FF? So with a switch you can go from standard FF to SHO?

Thanks,
Aaron