Friday, 10 June 2016

4ms Noise Swash

Another project by Commonsound/4ms.
You can find all info and schematic on their website here.
The original circuit uses a 1M Lin Pot with internal switch for the "Self Oscillation".
I've used a regular pot and an extra SPST switch but you can just use the original if you prefer.


15 comments:

  1. Man, this is brilliant! I have to build this. Ordering parts this second, thanks!

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  2. it's kind of amazing to me that so much noise and chaos and tweak-ability and range of sounds can come from so few components.. two ICs, four diodes, a few caps and resistors, and a bunch of pots and switches. no transistors, no exotic parts.. kind of blowing my mind.

    this pedal is really similar to the Mantic Flex.. this may even span more sonic territory than the Flex does. Check that pedal out though if you like noise boxes like this.

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    1. oh, and I think LowPower and NoiseGate should read B1K instead of B10K

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    2. Looks like I found my weekend project. This looks like a fun build. Thanks Alex!

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    3. Thanks, mate!
      They are B1K.
      That was a copy & paste error.

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  3. Really i nice Blog post. Thanks For Sharing this technical blogpost. It's Really helpful. Anybody wants to but pcb Board may follow : PCB Board

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  4. My guitar sounds like robot birds being massacred in a malfunctioning blender....
    Verified!

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    1. I'm going to change that to 'mostly verified.'
      Since the knobs are extremely interactive, it's difficult to determine if they're working exactly as they 'should.'
      My only concern is with the PostGain knob. After more messing around I've yet to hear it do anything at all to the signal..

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    2. Found the culprit: the 10K from PostGain 2 goes to pin 1 instead of pin 2! I've corrected it.

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    3. Ignore my comment below, you can verify it!
      I meant the postgain and it works now. The volumedrop from the switch 3 seems to be fixed now as well. Don't know if this is what caused it.

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    4. As in: I changed the 10K

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    5. Thanks for verifying it!

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    6. Happy to finally have done it :D Thanks for the layout!

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  5. Alright... Hard to say if it's verified or not haha. I have to compare it to videos I guess.. The pregain pot doesn't seem to be doing anything. Eventhough there is so much noise, the rest seems to have an obvious effect.

    Switch 3 influences the volume a lot. In position 1, the volume is at unity at 7-8 o clock already. In position 2, the volume drops considerably. Again, this could be normal.

    This is what I get out of it:

    https://www.youtube.com/watch?v=C0JjLD6pY3s Unplug my guitar at 2:45.

    The rest is pretty boring haha

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  6. hey guys, Alex, thanks a lot for this post!
    we've built this pedal and it mostly "works" but there is an constant annoying high whistle coming from what i suspect is the circuitry around the TL062... it's definitely not part of the noise this pedal is trying to do.
    anybody observe the same and know how to get rid of it?

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