Ive been looking all over the internet for a Schematic for the ISP Decimator Noise Reduction Pedal...Just Curious if anyone has seen one...Any Help would be Appreciated..Thanks
The stompbox version has six dual op-amps and a VCA chip, along with a lot of passive components. Even if you had a schematic, you'd probably prefer to buy one! :)
Maybe ill Just have to settle for a Boss NS-2 :(...Or an MXR Smart Gate.
QuoteThe stompbox version has six dual op-amps and a VCA chip, along with a lot of passive components. Even if you had a schematic, you'd probably prefer to buy one!
If you know whats inside .. then why don't you give us some pictures so that we can reverse engineer it ? And then make a verified schematic...???? :icon_question: :icon_question: :icon_question:
And also if anyone is owner of the ISP G-String Decimator ...could you that you have it ... upload pictures of the inside please ?
Thanks,
Angelo777
I don't have one to take pictures of. There are some out there in the internet, in a forum that's more focussed on reverse engineering than this place.
I shall say no more due to politics. :-X
QuoteI don't have one to take pictures of. There are some out there in the internet, in a forum that's more focussed on reverse engineering than this place.
I shall say no more due to politics.
LOL !!! :icon_razz:
Ok ... please pm me ;)
anchovie..... have you checked your messages ?
Angelo777 ;)
I bought a ISP Decimator stompbox the other day...better than MXR and WAAAY better than Boss. Of course the first thing
I did was open it up to look at the guts, and to my delight it was all thru-hole components! As far as I can tell anyway. I was
going to reverse engineer it as a project for myself, then share it...but is that some big no-no? I thought it was ok with the
big guys (Boss, etc)? Maybe there could be a sticky post made up by Aron or RG that details what is and isn't cool as far as
reverse engineering/copying circuits/posting schematics etc is concerned. It's contsantly a mystery to me. ???
Quote from: philbinator1 on April 06, 2010, 09:57:37 PM
... Maybe there could be a sticky post made up by Aron or RG that details what is and isn't cool as far as
reverse engineering/copying circuits/posting schematics etc is concerned.
I don't get to make the rules. I'm just a techie. :icon_biggrin:
Yeah, but you would have a better idea of the rules than a green noob like me! :icon_mrgreen:
QuoteAs far as I can tell anyway. I was
going to reverse engineer it as a project for myself, then share it...
philbinator1,
Could you give me the values of all the resistors and capacitors so i can give you a hand of help :icon_biggrin: ?
Or maybe a BIG CLOSE-UP photo of the pcb from both sides so that we can see the parts and the resistors colors clearly ...
Cheers!
Angelo777
Quote from: Angelo777 on April 07, 2010, 07:40:02 AM
QuoteAs far as I can tell anyway. I was
going to reverse engineer it as a project for myself, then share it...
philbinator1,
Could you give me the values of all the resistors and capacitors so i can give you a hand of help :icon_biggrin: ?
Or maybe a BIG CLOSE-UP photo of the pcb from both sides so that we can see the parts and the resistors colors clearly ...
Cheers!
Angelo777
Wow Angelo, you're quite keen on these photos, eh!? :D Ok well I'll take some photos and post 'em, I don't see the harm in that. But if
anyone else does, please let me know and if it's valid I won't post them (unless I already have). Don't know if I can get the
resistors' values without desoldering the whole lot, but anyway I'll start with the photos.
It would be cool to do a reverse of this, I've seen the odd post of people wanting it...including me, before I bought it. Tell you what if you
do it as a project, maybe you could include me and give me some parts or the reverse to do, so I can learn some more about it.
In the meantime...I'll pm ya
Isn't this a good topic for the "members only" forum?.
Al
Quote from: philbinator1 on April 06, 2010, 09:57:37 PM
I was going to reverse engineer it as a project for myself, then share it...but is that some big no-no?
That's absolutely fine :)
If anybody does reverse engineer the Decimator (or g-string version), and can provide a schematic, project notes, or anything else... please PM me!
Quote from: slacker on April 07, 2010, 01:04:19 PM
Quote from: philbinator1 on April 06, 2010, 09:57:37 PM
I was going to reverse engineer it as a project for myself, then share it...but is that some big no-no?
That's absolutely fine :)
Cool thanks! :)
Quote from: walker on April 07, 2010, 04:46:42 PM
If anybody does reverse engineer the Decimator (or g-string version), and can provide a schematic, project notes, or anything else... please PM me!
In progress, we will post when done :)
awesome. I've wanted one for a while, can't find schems anywhere. Godspeed to you!
funny thing that I always urged for a noise reduct. pedal on my pedal board, have had some ages ago and have built one (mxr) but I never use it. Always used those built in in my multi fx/processors but as I build more and more of my own pedals I realize that I actually don't need it anymore? these pedals that I use nowadays are simply noiseless! and if they are (from stock design) I try to make them noiseless. actually, I prefer it this way. hum reducing is nice, but since I play either humbuckers or noiseless single coils - no noise whatsoever. I built fraverb (tonepad) it had some noise, but then I found out that I was to cheap in building that blender for reverb (settings 6&7) that introduced noise. built it again with better components - noise is just a bare memory..
but still, it's cool and challenging :) if you trace it I'll build it! :)
Can you please PM me too? Thanks in advance.
A pm in my direction would be most appreciated as well. ;D Thank you!
Can I also have one? :icon_mrgreen:
Dear People-with-low-post-counts,
If anyone ever traces the Decimator, they will most likely post their findings in a thread rather than dig out a list of newbies to send PMs to, given that they will have already done quite a bit of work!
Just saying. :)
bump!! forgottenN??
I hope this serves as something
http://elsonadero.com.ar/viewtopic.php?f=9&t=262
I want this damn pedal :icon_evil:
can u pm me to... :icon_biggrin: :icon_biggrin:
This is the last version of the schematics: http://9giga.sfr.fr/n/50-17/share/LNK48944daf36145d094/
NICE!:D
Hello,just a noob posting in a zombie thread to ask for stuff.
I'm guessing this build did not work out. Was their any other progress made on this??
Bad noise make brain hurt, decimator SMASH!!
Check this out http://www.diystompboxes.com/smfforum/index.php?topic=88902.0 (http://www.diystompboxes.com/smfforum/index.php?topic=88902.0)
Quote from: Kearns892 on September 06, 2011, 12:27:38 PM
Check this out http://www.diystompboxes.com/smfforum/index.php?topic=88902.0 (http://www.diystompboxes.com/smfforum/index.php?topic=88902.0)
"The topic or board you are looking for appears to be either missing or off limits to you." - what's up with that?
A few months ago, I did some digging with the wayback machine and found an explanation that the thread was removed due to too many people having trouble getting their builds to work. Or at least that's what I remember. I could have confabulated it.
Anyway, here's the info I've been using for my build:
http://revolutiondeux.blogspot.com/2012/07/isp-decimator-noise-reduction-system.html
http://juansolo.demon.co.uk/stompage/schematics/ISP/
Quote from: mremic01 on January 26, 2014, 06:22:24 PM
A few months ago, I did some digging with the wayback machine and found an explanation that the thread was removed due to too many people having trouble getting their builds to work. Or at least that's what I remember. I could have confabulated it.
That's quite remarkable ... many people are asking for help, so kill the help? ???
I think the reasoning was that it was an inherently flawed project that few people were having any success with. But that's what I remember, vaguely, so for all I know I dreamt it and it's just a bug in the forum that's keeping us from getting to that thread. Either way, mine worked fine without any need for debugging and a lot of the info that was in the thread has been carried off onto other forums.
Quote from: mremic01 on January 27, 2014, 02:07:25 PM
I think the reasoning was that it was an inherently flawed project that few people were having any success with. But that's what I remember, vaguely, so for all I know I dreamt it and it's just a bug in the forum that's keeping us from getting to that thread. Either way, mine worked fine without any need for debugging and a lot of the info that was in the thread has been carried off onto other forums.
I built a Non-G string using that topic, and later added a board to provide G-Sting functionality:
(http://diy-layout.com/diyl/75/render)
iSP Decimator - G String add-on (http://diy-layout.com/75)
Unfortunately, I don't have access to that build right now.
Sorry for the necrobump
I was looking at Harold's g-string add on vero and trying to figure out how to integrate it into the decimator vero up at sabrotone.com
I'm having some trouble looking at the schematic and identifying where things go.
in the schematic here http://2.bp.blogspot.com/-l2NRTEh3J54/T-8ppoN5mNI/AAAAAAAABm0/L-RQt6ykI84/s1600/ispscheme.jpg it says that C3 and C5 are going into U7.1
in haralds diagram here http://www.sabrotone.com/?attachment_id=1380 C3 and C5 go into U5... but the schematic says that they go into U7....
confused. can anyone straighten this out?
Thanks
Tim