Hi guys!
Have another cool project for you.
The guy over http://cackleberrypines.net/transmogrifox/TransmogriNotes/skwah/index.html (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>
(http://i.imgur.com/Fui5kRCl.jpg)
(http://i.imgur.com/Zkk9h3el.jpg)
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 (https://www.4shared.com/office/NSk921Alca/Inductorless.html)
Cheers,
Thomas
That's really cool
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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.
I kinda love this.
just had a look at your pdf instruction. looks like the protection diode is in the wrong way. thanks for your efforts
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
Nice ! I Think Georges Dennis wah were also inductorless (at least the the one that I own is).
Totally love it. Had a small home built wah shell on the to do list forever. Very inspiring.
great work
in 1590A with badass etch like that? awesome!
btw, why i can't download in 4shared? countdown timer not running :(
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!!!
8) 8) 8)
Looks great! nice work.
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 (https://www.dropbox.com/s/oa0mw54go3gx6pl/Inductorless.pdf?dl=0)
Quote from: thomasha on August 22, 2017, 02:59:08 PM
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.
That etch is awesome
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That's really really cool!
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Damn, that's awesome.
Wonderful job as usual, Thomasha!
I'll give it a go as soon as I have the time.
Little question though, is R10 really a 1 ohm resistor?
That's really great!!!
R10 is a 1 ohm resistor, but you can use a jumper.
The thing is that if you put a 1k potentiometer there you can change the Q frequency.
The resistor is there so I could tweak the circuit, but in the end it sounded better with the pot. shorted
So I guess the BOTY contest this year is just for runner-up positions. ;D
Awesome build!
Made one, also in a 1590ish enclosure. Sounds great!. :D
All the components are from Tayda. Tayda's LDR (they only sell one type) resistance goes from ~0.9kOhm to ~1.5MOhm using an "ultra bright" white LED.
Thank you Tomasha!.
Quote from: thomasha on August 22, 2017, 09:28:03 AM
Hi guys!
Have another cool project for you.
The guy over http://cackleberrypines.net/transmogrifox/TransmogriNotes/skwah/index.html (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>
(http://i.imgur.com/Fui5kRCl.jpg)
(http://i.imgur.com/Zkk9h3el.jpg)
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 (https://www.4shared.com/office/NSk921Alca/Inductorless.html)
Cheers,
Thomas
That's amazing. I'd love a wah that size.
Here is mine.
Thank you again, thomasha. :)
Hi, i'm Lucas, this is my first post.
First, congrats for the project and the buldings, are amazing.
Now, I built a colorsound twin T wah and even though it sounded good, it wasn't what I was looking for.
So I decided to try this wah, which looks awesome, the sound and the project.
But the first step was the first problem, in my city I can't get the 2N5457 MOSFET.
When I looked at the place in the schematic, it's in the input buffer (I'm not expert in electronics, only a youtube viewer jeje, so probably I'm wrong ;D)
Finally, my question, can I change the input buffer without changes in the final wah sound? How can I calculate it if possible?
Regards, hoping help
That looks amazing. I love the etching. I've never seen a wah build in anything but a wah shell. I understand that it's an led/lrd combo for the wah sound but how exactly is it attached to the treadle. If I can understand how you built the enclosure I can foresee myself making a small buffered volume pedal.
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Under the lid is a thin aluminium sheet, where everything is screwed to, so that it would not ruin the top etch. There I fixed another thin piece of aluminium which enters the box right between the LED and LDR. It is more visible in my first wah, where a plastic piece was fixed with a small wire.
(http://i.imgur.com/U4DJp5ql.jpg)
Here you find more pictures:
https://www.madbeanpedals.com/forum/index.php?topic=20656.0 (https://www.madbeanpedals.com/forum/index.php?topic=20656.0)
Regarding the previous question, another fet would be the J201, but this one is even worse to find. A better approach would be to redesign the gain stage with a simple transistor.
There is also a schematic with an OpAmp here http://cackleberrypines.net/transmogrifox/TransmogriNotes/skwah/index.html (http://cackleberrypines.net/transmogrifox/TransmogriNotes/skwah/index.html)
But will require a new layout.