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This or THAT??? Decimator question

Started by Guybrush, November 02, 2021, 06:02:14 PM

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Guybrush


m-Kresol

can you tell me where you got your THAT chips from? I built a gate a few weeks back and got some coolaudio v2181 chips via ebay that turned out to be only partially working (1/5). the others introduced more noise than they suppress. unfortunately, I did not find any sources...
I build pedals to hide my lousy playing.

My projects are labeled Quantum Effects. My shared OSH park projects: https://oshpark.com/profiles/m-Kresol
My build docs and tutorials

jimilee

Have you checked cabintech? They're usually good for hard to find chips. Not sure about right now though, seems to be a chip shortage.


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Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.

m-Kresol

Quote from: jimilee on November 05, 2021, 05:42:29 PM
Have you checked cabintech? They're usually good for hard to find chips. Not sure about right now though, seems to be a chip shortage.

thanks Jimi. Haven't used them before. Unfortunately, they are out of stock (as are all my regular suppliers). With the general semiconductor shortage, I think that XVive is on the lowest priority with fab houses at the moment. The amounts they order are likely much smaller than common semiconductor parts for automotive and so on.
I build pedals to hide my lousy playing.

My projects are labeled Quantum Effects. My shared OSH park projects: https://oshpark.com/profiles/m-Kresol
My build docs and tutorials

czapa tranzystor 2

Yes.Decimator 1 based on schematic Joao Galego.Time to move on to 2.                                     
https://drive.google.com/file/d/0BwMWxzd7lEJ4N3c5YUwzNTJ1Tms/view?resourcekey=0-FEM2xBBkPvzVM_NIKL73cw

jimilee

Quote from: czapa tranzystor 2 on November 08, 2021, 05:27:44 PM
Yes.Decimator 1 based on schematic Joao Galego.Time to move on to 2.                                     
https://drive.google.com/file/d/0BwMWxzd7lEJ4N3c5YUwzNTJ1Tms/view?resourcekey=0-FEM2xBBkPvzVM_NIKL73cw
Nice, I saw that a while back. Never built it though. I figured once you build one that works, really wasn't a need / want to build another one. But, I just might do it now.


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Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.

Muadzin

Quote from: madbean on November 03, 2021, 01:23:20 PM
Yeah my Decimator build has never left the pedalboard. It's pretty great.
I have a noise gate idea I've been kicking around based on the THAT 4305. It's borrows a bit from the Fortin Zuul and also one of the THAT application notes. Haven't tried building it yet. I really should add something like that to the mbp project list eventually.

You know, what I would really have liked is to have a noise gate add on board for high gain dirt pedals. Or a noise gate section as part of a high gain pedal build. That would have saved me pedal board real estate. I used to have up to 4 to 5 dirt pedals on my board necessitating at least a couple of noise gates for some of them, as I was working with loops and 1 setting to rule them all wasn't really working in my experience. Personally I think every dirt pedal should have a built in noise gate to begin with. With a possibility to bypass them if you want too.