I want to build a fuzz, i have some questions :)

[Kasaba]

Hello

I want to build the Axis face from Fuzz central. This look like a good and easy pedal to build. The part list on the website is still okay ? What is the  size of the pcb ?

Peace

[Kipper4]

Welcome Kasaba.
If you share the schematic you intend to use it's easier for use to say yay or nay.
you will probably find many good, differently sized layouts. So the pcb size again depends on which you use.
The Axis face is a favorite fuzz for me. I'm not really a fuzz guy though.
There are lots of fuzzy guys here to help.
What is your experience level ?
Do you read schematics well?
Solder well?
Recognise componants easily?
This SHOULD  be a nice started project.
I say should because its easy to muck up even simple projects.
Be prepared to learn to debug circuits.
Dive in

Rich

[rutabaga bob]

Welcome to the forum!
-- Larry

[Kasaba]

Thanks you

This is this fuzz http://fuzzcentral.ssguitar.com/axisface.php

I am a noob in DIY, a friend of me gonna built it for me, but i have to buy all the parts for him ^^

Cheers

[Kipper4]

Team work.
Sounds great.
Depending on where in the world you are parts should be easy enough to get.
you can use 1/4watt reistors
16~25v capacitors
The 100pf cap(acitor) and 220nano farad cap can be ceramic or box caps.
thinking of the size is important as the circuit has to fit in an enclosure.
you can probably substitute the 15uf cap with a 22uf or 2x back to back 33uf caps. reason being 15uf caps would be hard to find.
you can also replace the npn transistors with others if you observe the same sort of gain characteristics described in the parts list (link at the bottom of the schematic page)
It will more than likely be fine. This is also dependant on parts availability in your part of the world.
Have fun I hope it works well for you both.

[smallbearelec]

Hi--

If you want your best chance of success, do not try to do a soldered build directly from a schematic. Breadboard First! This article:

http://diy.smallbearelec.com/HowTos/BreadboardSiFF/BreadboardSiFF.htm

explains how. This kit:

http://smallbear-electronics.mybigcommerce.com/breadboarding-the-fuzz-face/

contains everything needed, and the parts can be used in a soldered build when you are ready. HAPPY CONSTRUCTION!

[Kasaba]

Thanks you for the answers

I want to build from a project, not a kit ^^

I make a cheklist of the parts, is that good ?

Alpha 16mm FS 100k lin
Alpha 16mm FS 1k lin
Alpha 16mm FS 100k log
Trimpot T93-YA 10k

1,0M, MF 0,25W
100k, MF 0,25W
33k, MF 0,25W
1,2k, MF 0,25W

Panasonic FC 15uF 50V
Panasonic FC 100uF 25V
Silver Mica - 100pF, 100V
Xicon Greenies 0,22uF
Xicon Greenies 0,033uF
Xicon Greenies 0,01uF

Taiwan Blue 3PDT switch

DC Jack 2,5mm chassis mount, isolated
1N4002

BD139-16 x2

Switchcraft SC-12B
Switchcraft SC-11

I just need a gerber files for PCB, but I don't know how to make that (we propose me 10 $ for the PCB). Do you think a pcb with 30*50 mm is good ?

Cheers

[smallbearelec]

1K linear for the fuzz pot will work, but 1K reverse audio (if you can get it) gives better control.

Please do not make a PC board for your first build. There is a learning curve to that process separate from everything else you need to learn. BREADBOARD FIRST! You don't have to buy my kit; the individual items are available from many sources. What is important is that you make your initial mistakes (There Will Be Some!) in a solderless environment and correct them there. I can't emphasize enough how important it is for a beginner to know in his bones that one small error means that a build does not work.

Once you have the FF working on the breadboard, you can choose to build on perf or Veroboard, and there are numerous vetted layouts out there. Do Not attempt to draw your own layout for a first build. Learning how to do that right is yet another process.

[Kasaba]

Hi

I gonna use this http://diy.suregork.com/wp-content/uploads/2011/04/Axis_face_vero.jpg

Cheers

[smallbearelec]

I gonna use this http://diy.suregork.com/wp-content/uploads/2011/04/Axis_face_vero.jpg

Even though I sell it, I don't like Veroboard as a medium: It does not force you to think out connections the way pad-per-hole perf does. That said, the drawing should work. However, it does not guide you through the off-board wiring to the jacks, pots and stomp switch. Make sure that you can correctly ID Tip, Ring and Sleeve of your jacks. Test the build without a stomp switch first. When it does not work, come back here and some the residents who are Vero users will help you figure out which trace you forgot to cut. When you have the board working when wired straight through, you can add the bypass switch.

[rutabaga bob]

tried to upload a diagram, but it turned out minuscule and worthless...thanks, imageshack



how about photobucket!

[Transmogrifox]

You will save yourself a lot of trouble if you heed Steve's advice. 

http://diy.smallbearelec.com/HowTos/BreadboardSiFF/BreadboardSiFF.htm

You will get through it if you try to go straight to board, but I remember my first ever project was a fuzz.  It's amazing how complex a simple 2-transistor circuit can be when you don't understand how it works, and it isn't working.  I was glad all my failures were discovered on the breadboard because it would have been a real mess (and probably introduced even more problems) is I had gone through this process with solder involved.

[deadastronaut]

as steve says :  breadboard, breadboard, breadboard....

:get it working

:see if you like it

:if not, you've saved a lot of work

: if it works you can tweak it to taste

:have a beer...and play..

[Transmogrifox]

:have a beer...and play..

If it doesn't sound the way you like it, have 3 or 4 more beers...and play. 

[bluebunny]

Public service announcement

If it doesn't sound the way you like it, have 3 or 4 more beers...and play. 

Obviously there is a limit to this.  After twenty-eight beers, you'll plug your guitar into the cat and think it sounds great.   

[antonis]

You guys are tragic..

Now Kasaba have to count enough space on board for more than two dozen of beers and a couple of cats..
(preferably a cat family for tweaking..) 

[duck_arse]

I've allays tole my customers (yes, yes, stop larffing) that "the performance of this pedal is in no way improved or enhanced by the application of liquids, even beer".

perhaps I've been using the beer wrong. what was the question, again?

[Gargaman]

If you could, buy 2x of everything in your bill of materials.
Buy another cat too

[Kasaba]

Heeellloooooooooo

I have finish the fuzz and this working great, better than germanium fuzz. Thanks to larry for you help !

[/URL][/img]

I am working on two new projects :

I want to mod this fuzz, the ideas are to have a treble boost and a fuzz in the same box ( all NPN Silicon ) and I want to add a switch to boost the bass/medium/treble on the two sides.

I am working also on a fulltone fulldrive ( http://images.google.fr/imgres?imgurl=http://1.bp.blogspot.com/-8VPnYNFEzw0/U1sRpmioLRI/AAAAAAAAG54/ZOl_FgAbc0o/s1600/Fulltone%2BFulldrive%2BII%2BMosfet.png&imgrefurl=http://tagboardeffects.blogspot.com/2014/04/fulltone-fulldrive-ii-mosfet.html&h=941&w=689&tbnid=JFN5HJc-bLSnxM:&tbnh=90&tbnw=66&docid=LB838Ud2tHHp6M&usg=__DuvkxCFjJHCwqW1jlSMGajspu5E=&sa=X&ved=0ahUKEwjZ-erYyr7OAhUCnBoKHdnbDPgQ9QEIIjAC )

My first idea is to change the IC by a burr brown, good or bad idea ?

[bluebunny]

My first idea is to change the IC by a burr brown, good or bad idea ?

For a fuzz??  If you really want to blow a few bucks, I'll give you my address.