Another Inductorless Wah, now with Sallen-Key filter

[thomasha]

Hi guys!
Have another cool project for you.
The guy over http://cackleberrypines.net/transmogrifox/TransmogriNotes/skwah/index.html
came with this idea and presented all the simulations and results.

If you remember, I built a colorsound wah, but it wasn't that intense as the other circuits that do use an inductor.
So I gave it a try, and now here is the result>



It really sounds better than the colorsound wah. I still need to make a comparison video, but until then, here is a short video of it. I'm still learning how to control a wah, for the second time...

Hope you like it!
I made a small file for it, but it's not as good as the madbean documents.
https://www.4shared.com/office/NSk921Alca/Inductorless.html

Cheers,
Thomas

[jimilee]

That's really cool


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[m-Kresol]

I had a behringer wah that worked on a system like that. I slaughtered it for the enclosure though.

Love what you did, especially using a 1590A is impressive (i know, that is probably a big enclosure for you ) and using its cover as the rocker is a great idea. Also, the graphics on top fit perfectly.

[pickdropper]

I kinda love this.

[m-Kresol]

just had a look at your pdf instruction. looks like the protection diode is in the wrong way. thanks for your efforts

[thomasha]

wait, I thought the cathode should go to 9v, so it won't flow to ground and short the circuit.
I checked my eagle file and it seems right

[WAXOU]

Nice ! I Think Georges Dennis wah were also inductorless (at least the the one that I own is).

[wgc]

Totally love it. Had a small home built wah shell on the to do list forever. Very inspiring.

[Philthy]

great work

[287m]

in 1590A with badass etch like that? awesome!

btw, why i can't download in 4shared? countdown timer not running

[mrclean77]

That is awesome! The etch is sharp and the circuit sounds great - I also love the fact that in the OP you glossed right over it being in a 1590A!!!

[Martan]

Looks great! nice work.

[thomasha]

I started to use 4shared after the dropbox public folder wasn't working anymore.
Maybe if I share the dropbox link?
https://www.dropbox.com/s/oa0mw54go3gx6pl/Inductorless.pdf?dl=0

[m-Kresol]

wait, I thought the cathode should go to 9v, so it won't flow to ground and short the circuit.
I checked my eagle file and it seems right

you are totally correct and it is also correct in your eagle files. It seems I had a brainfart yesterday, sorry.

[PhiloB]

That etch is awesome


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