Devi Ever - Legend of Fuzz

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

Just took some pics of this one. There are six transistors in this thing! No wonder it's so $#%$%# loud!

2 metal cans are 2N2907 and 2N2222. Not sure what the 4 plastic transistors are (they look like they say BH52 and then something else then A111). Or the caps. My eyes aren't good enough to read them. Guess I need a magnifying glass. Was hoping they'd be legible in pics but not so sure, at least not without some image enhancement.

Anyway, posting pics in hi-res as I don't know when I'll have time to draw up a schematic but figured others may want to take a look.

http://farm4.static.flickr.com/3279/307 ... 5b.jpg?v=0
http://farm4.static.flickr.com/3011/307 ... fc.jpg?v=0
http://farm4.static.flickr.com/3017/307 ... 21.jpg?v=0
http://farm4.static.flickr.com/3192/307 ... 66d6_o.jpg
Board on left side of above shots:
http://farm4.static.flickr.com/3074/307 ... 3d.jpg?v=0
http://farm4.static.flickr.com/3180/307 ... e587_o.jpg
http://farm4.static.flickr.com/3028/307 ... a245_o.jpg
http://farm4.static.flickr.com/3035/307 ... 0323_o.jpg
Board on right side of above shots:
http://farm4.static.flickr.com/3068/307 ... db.jpg?v=0
http://farm4.static.flickr.com/3044/307 ... cdd4_o.jpg
http://farm4.static.flickr.com/3243/307 ... 2dd6_o.jpg
http://farm4.static.flickr.com/3275/307 ... 89f1_b.jpg

Edit:
Included pics changed to links by the moderator.

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bumblebee
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Post by bumblebee »

Cool, you should probably change the pics to links though because it took ages for my page to load.
Can you check the values of the caps, transistor types and write them on the pic over each part? also take a photo above the pedal so we can see all the wiring, since its two PCB's this is essential to work it out, for me anyways.
Thanks for the pics anyways.

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Post by soulsonic »

Looks like a bunch of simple boosters all in series with two of the stages having the doubled-up combo of two different transistors.
Is a bunch of boosters in series the noise fuzz equivalent of the of the Tube Screamer? I'm starting to see a trend with these things.
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sugarinthegourd
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Post by sugarinthegourd »

I suspected it was a bit like Doug Deeper's Random Number Generator and looks like maybe it is, with more stages. The gain this thing puts out is ungodly.

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Post by doug deeper »

im coming out with a pedal that has 2 bunches of boosters.
:idea:

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Post by briggs »

doug deeper wrote:im coming out with a pedal that has 2 bunches of boosters.
:idea:
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sugarinthegourd
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Post by sugarinthegourd »

doug deeper wrote:im coming out with a pedal that has 2 bunches of boosters.
:idea:
Doug,

Your new pedals sound awesome based on the clips at PGS. Congrats on some real innovations. I know you said earlier you pay the bills with these things and would rather schematics not be posted. I for one will honor that request if I'm lucky enough to buy one.

The Psych Byke isn't one of your wackiest-sounding designs, but it sounds very original. And useable. Anyone know of another fuzz that sounds like that one?

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Post by RnFR »

i think there is a lot of that doubling up of the transistors going on in these designs. i saw that in my aenima as well.
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Skarrgus
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Post by Skarrgus »

Here are some pcb layouts I did in DIY layout creator... Took me about 10-15 minutes, so there may be some errors. I didn't get any of the wires, as I couldn't really make out a lot of the wires (either too dark or too bright, sorry), though I'll try to get them in later.
Also, I'll need someone else to add in the component values.
Attachments
Small board of BIT, also marked "33"
Small board of BIT, also marked "33"
BIT Small Board 33.gif (6.59 KiB) Viewed 4018 times
Large Board of BIT, also marked "GZ"
Large Board of BIT, also marked "GZ"
BIT Large Board GZ.gif (8.91 KiB) Viewed 4020 times

[The extension diy has been deactivated and can no longer be displayed.]

[The extension diy has been deactivated and can no longer be displayed.]


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Skarrgus
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Post by Skarrgus »

Here's the larger board with component values and the wires as best as I can make out.
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[The extension diy has been deactivated and can no longer be displayed.]


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Skarrgus
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Post by Skarrgus »

... And, here's the smaller board.
The first version I posted was backwards, sorry.
It may still need some corrections.
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[The extension diy has been deactivated and can no longer be displayed.]


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Skarrgus
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Post by Skarrgus »

As far as I can tell from the pictures, there's just a pre-input 100k pot (Control) going into the small board, a wire from the out of the small board into the large board and then a post-output 100k pot(volume).
The resistor connected to the "Control" pot seems to be going to -9v.

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Post by iloophao »

wires!!!!come on man! i need know, please

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Post by TheLemon »

Cool project, thanks guys! Would love to whip one of these up.

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Post by Emanuele »

?What changes you get using a doubled transistor array?

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Post by sevinisthenumber »

anyone have a completed layout?
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Post by SirBlend12 »

sevinisthenumber wrote:anyone have a completed layout?
Seconded. I'm mostly interested in the 33/SilverCrank side. I tried to trace from the pics but something just seems odd about the traces/components ratio...

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celadine
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Post by celadine »

unverified schematic:
DE BITlof.BMP

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HEAD
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Post by HEAD »

Hi,

according to this unverified schematic above, here is my unverified layout. Maybe someone wants to give a try. Watchout the last transistor couple - the E's are antiparallel here.

Cheers
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K1024_Devi Ever BIT.JPG

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Post by Square King »

Has anyone had an opportunity to test/verify the posted layouts? I'm looking to attempt my first build and, well, I don't want a standard fuzz face. :mrgreen:

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