Monday, 17 July 2017

Iron Butterfly Fuzz Wah

Not much info on this one, not even who actually made it. Found the schematic years ago over at DIYSB where it was reversed with the help of none other than dino. Figured I'd tale a shot at a vero since I did so many other wahs.



11 comments:

  1. http://files.effectsdatabase.com/gear/pics/unknown-usa_ironbutterfly_012.jpg

    This would suggest it was designed by Ed Sanner and never actually produced commercially due to the deal falling through. Interesting stuff.

    http://www.effectsdatabase.com/model/unknown/usa/ironbutterfly

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  2. Which schematic have you used for this? Q2 appears to be coupled from Q1's base, rather than collector as you would expect.

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    1. that's my mess up, not the schematic. thanks for catching that man. updated the layout.

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  3. Hey man if you're doing anymore wah layouts, would love to see the Mutron C-200 Vol/Wah. Realize there are challenges with it, but isn't it about time we as a community figured them out? :)

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    1. it's on my list, but with the transformer and rectifier it's not gonna be pretty if i can get it done.

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  4. It would be really impractical to use the original power supply on a stripboard build. Most people would want to replace it with a charge pump or dedicated bipolar power supply

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    1. true, but the voltage isn't marked on the schematic. i assume it's 9V

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    2. http://2.bp.blogspot.com/_2PrdllNg9jo/TPCcY2D-hSI/AAAAAAAAANM/buHXEex_lqY/s1600/ib3+new.jpg It appears the original unit was battery driven, or at the very least, lacks a power jack that would suggest otherwise.

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    3. correct, the iron butterfly wah was battery driven and runs at +9V, just as the layout indicates. we're talking about the mutron c-200 volume/wah, which has an onboard transformer with a power cord coming out of it.

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    4. A 4558 has a max supply voltage of 36v. So using a charge pump to give +/-15v should work fine providing it can carry the current.

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