Author Topic: Sprout fuzz working but makes noise - help  (Read 3105 times)

Ettore_M

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Sprout fuzz working but makes noise - help
« on: September 07, 2011, 02:09:46 PM »
Hi there! Need help here!

I built a sprout fuzz on veroboard (the one with the parallel lines  ::))..
When I plug it in, it plays ok, but it makes noise in the background (when I don't play.. ;D).
I double-checked for bad joints, wiring, etc., but I did not find something wrong. Maybe the fault is in the layout I made, so I attached the layout I made on DIY LC. I'm noob in this program, so I hope it does not confuse you..
I hope I made you understand what's the problem.. ::)
If you need any extra information, tell me

Thanks!

-Hector-

[attachment deleted by admin]
« Last Edit: September 07, 2011, 03:47:45 PM by Ettore_M »
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irmcdermott

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Re: Sprout fuzz working but makes noise - help
« Reply #1 on: September 07, 2011, 05:47:54 PM »
Does it make noise when the pedal is on? In bypass? Or both? I haven't built the Sprout, but fuzz pedals in general can be noisy... even when you aren't playing. Unless it's like a Sabertooth and has that gate control, that may be normal. Maybe someone who has built one can chime in, but I'm going to say that it is because it a fuzz, and well, they are noisy.

gtr2

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Re: Sprout fuzz working but makes noise - help
« Reply #2 on: September 07, 2011, 06:59:03 PM »
Is it in an enclosure or are you testing it out of box?

It will be pretty noisy unshielded.

Josh
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Ettore_M

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Re: Sprout fuzz working but makes noise - help
« Reply #3 on: September 08, 2011, 01:21:23 AM »
Is it in an enclosure or are you testing it out of box?

It will be pretty noisy unshielded.

Josh
I wanted to tell you about that.. I haven't boxed it yet, because I prefered to follow Brian's rule. I thought that if I grounded the jacks, it wouldn't have a problem.. Do you think it's because of me not boxing it?
Now for the layout. Do you think it's right? It's the first time I do this..
" I would first try what I call The American Approach, which is simply this: "If X is good, then 2X simply HAS TO BE twice as good."  ;D "
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gtr2

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Re: Sprout fuzz working but makes noise - help
« Reply #4 on: September 08, 2011, 03:30:26 AM »
An unshielded fuzz circuit is going to be noisy.  Just grounding the jacks only completes the circuit so you get a signal.  Once in the enclosure the jacks ground through the enclosure and help shield the effect.

Josh
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Ettore_M

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Re: Sprout fuzz working but makes noise - help
« Reply #5 on: September 08, 2011, 03:33:43 AM »
An unshielded fuzz circuit is going to be noisy.  Just grounding the jacks only completes the circuit so you get a signal.  Once in the enclosure the jacks ground through the enclosure and help shield the effect.

Josh
Aha.. I understand.. Thanks, Josh!!! ;D

Hector
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Ettore_M

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Re: Sprout fuzz working but makes noise - help
« Reply #6 on: September 08, 2011, 03:36:10 AM »
But can anyone tell me if the layout is right? I want to know if I do it the right way..  ;D
Thanks!

Hector
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irmcdermott

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Re: Sprout fuzz working but makes noise - help
« Reply #7 on: September 08, 2011, 08:46:12 AM »
From a quick glance, it looks like everything is connected correctly. You could probably trim down the layout a bit. I've only ever done one vero layout/build, so maybe someone else will catch something, but it looks correct to me. If you want, you can just wire lug 2 of the pot straight to the output jack and not run the wire to the board first.

Ettore_M

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Re: Sprout fuzz working but makes noise - help
« Reply #8 on: September 08, 2011, 10:02:36 AM »
From a quick glance, it looks like everything is connected correctly. You could probably trim down the layout a bit. I've only ever done one vero layout/build, so maybe someone else will catch something, but it looks correct to me. If you want, you can just wire lug 2 of the pot straight to the output jack and not run the wire to the board first.
ok. I'll do that.. But do you think that the bigger layout will cause problems in the sound?
" I would first try what I call The American Approach, which is simply this: "If X is good, then 2X simply HAS TO BE twice as good."  ;D "
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irmcdermott

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Re: Sprout fuzz working but makes noise - help
« Reply #9 on: September 08, 2011, 10:05:57 AM »
not at all

Ettore_M

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Re: Sprout fuzz working but makes noise - help
« Reply #10 on: September 09, 2011, 12:55:31 AM »
" I would first try what I call The American Approach, which is simply this: "If X is good, then 2X simply HAS TO BE twice as good."  ;D "
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dwstanford

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Re: Sprout fuzz working but makes noise - help
« Reply #11 on: September 09, 2011, 07:45:31 AM »
Yeah, i would try boxing it up, but not soldering the connections down until you are sure.  With a fuzz build, you will definitely get some background noise even when in the enclosure, but it will be more pronounced out of the box.  The layout shouldnt make a difference sinc there is such a low part count.  A more complicated build would benefit from being cut down, but yours should be fine.  Ive built this circuit a few times and it will have some noise, but isnt overly noisy.  Good luck.

Ettore_M

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Re: Sprout fuzz working but makes noise - help
« Reply #12 on: September 09, 2011, 08:52:30 AM »
Thanks for the help, guys! I wired it up and boxed it in a can box.. It has some noise, but I don't care.. I like it very much and I'm so excited with the result.. I'll post photos and sound samples in the "build reports" when I find some time. Well, thanks again! ;D
" I would first try what I call The American Approach, which is simply this: "If X is good, then 2X simply HAS TO BE twice as good."  ;D "
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dwstanford

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Re: Sprout fuzz working but makes noise - help
« Reply #13 on: September 09, 2011, 09:20:49 AM »
Im glad you like it.  Be sure to post some sounds.  Id like to hear it.

Ettore_M

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Re: Sprout fuzz working but makes noise - help
« Reply #14 on: September 09, 2011, 01:45:26 PM »
Im glad you like it.  Be sure to post some sounds.  Id like to hear it.
You bet I will... ;D
" I would first try what I call The American Approach, which is simply this: "If X is good, then 2X simply HAS TO BE twice as good."  ;D "
 - Culturejam