Hi,
I couldn't find a build report of this pedal yet, so here are some pictures I made.
It's an easy build, so I wanted to make it small...ish!
Let's begin with the schematic:
(http://t0.gstatic.com/images?q=tbn:ANd9GcTjBqbiJl0hQjbUlqpIHvMt1sgSoouRqGHoQNeEBlTf2_8nEGac2A)
and the build:
(http://i.imgur.com/3pz5sgjl.jpg)
(http://i.imgur.com/U4DJp5ql.jpg)
(http://i.imgur.com/Doaez6Wl.jpg)
(http://i.imgur.com/OSwMCeel.jpg)
I used some wood pieces to maintain the board on place.
The shutter is a plastic piece from a shampoo (Yes I know)
I replaced the pot by a led/ldr and a parallel 100k resistor.
Volume is maxed.
Cheers!
Thomas
Amazing work! So tiny...such great tone!
Among the most amazing builts i've ever seen!
Can you send me an hand signed picture of it? ;D
Any video?
Very cool indeed and sounds fantastic
Absolutely the best thing I've seen in a long time! Made my day. :)
amazing build 8) love how you managed to build that little expression pedal on top :)
has to be one of the coolest things I have ever seen. you sir are a maniac!! :D
Shampoo shutter! DIY all the way man! :D
Love it.. Just amazing! You are the man.. ;)
Great job on this one! (Y) ..and thanks for demo :)
Wow! DIY at it's bests. This beats the mini-crybaby :)
you should get a prize or a diplomma of some sort for using a piece from a shampoo bottle. true recycling :P
This makes me quite unreasonably happy.
And a little jealous.
But mostly happy.
Wow I love it. Thanks for all the detailed pics! It is a simple yet elegant solution for a diy wah pedal! It inspires me to want to try to build one although probably at least in a 1590B :-[ It sounds great too!
Also, it looks to be really solid and reliable too.
I'm calling it now: Build of the Year!!! :) :) :)
This thing hits on so many levels. Fantastic.
Sent from my iPhone using Tapatalk
What LDR did you use?
Hi, thanks guys!
The LDR is from Tayda, it has no type especification. I need to check the value.
Thomas
Micro engineering at its most awesome. 8)
Yep. Took a page right out of midwayfair's playbook. This is freaking fantastic. Holy cow. I can't stop looking at it.
Either your feet are massive or that wah is really small! Probably the greatest wah ever! DIY at its best.
Awesome!!!!! Love the LDR/LED implementation - would like to make an expression pedal that size - or maybe a massive 1590B :-)
Wow!
Take that CBM95!
Now that is really cool! Smallest wah wah I have ever seen.
Very SWEET build and sounds great!.
( i need to rethink my pedal building skills again) :P
With this comes an infinite supply of cool.
What else can be said?
This.
Is.
Killer.
Watch out Toe Jam. Here comes Thomas! This is a seriously impressive accomplishment.
What amazes me is that the construction and photography makes you go, "Hmmm... I could have a go at that."
Hi,
thanks agains for the compliments,
In fact the toe jam was one of my inspirations of course! If you're interested in a pot based wah, take a look at this:
it's in japanese, but I guess google can handle it.
http://blogs.yahoo.co.jp/takabb9055/31634649.html (http://blogs.yahoo.co.jp/takabb9055/31634649.html)
http://blogs.yahoo.co.jp/takabb9055/31621362.html (http://blogs.yahoo.co.jp/takabb9055/31621362.html)
when I saw this for the first time I had to try it myself!
Hope you like some more information about small wahwah builds.
I'm currently using a white led, but need to check which color works better.
Cheers,
Thomas
I have to agree with others that it is frickin' awesome. Words cannot express how awesome this build is.
As for the sound quality, it sounds great when you're playing notes, although muted strings whacka whacka seems a bit wanting. I guess the circuit is to blame, not you.
Now I want one as well. :(
Muadzin, you're right!
I was expecting more, could it be the low resistance of the ldr/led? When I'mback home I'm willing to measure how much resistance the ldr increases with the led, and which color is the best (higher resistance). I read somewhere that the colorsound wahs only go from 50k to 91k because of the mechanism. Let's see how it works with ldr/led.
Cheers,
Thomas
Quote from: thomasha on April 04, 2015, 04:30:56 PM
Hi,
thanks agains for the compliments,
In fact the toe jam was one of my inspirations of course! If you're interested in a pot based wah, take a look at this:
it's in japanese, but I guess google can handle it.
http://blogs.yahoo.co.jp/takabb9055/31634649.html (http://blogs.yahoo.co.jp/takabb9055/31634649.html)
http://blogs.yahoo.co.jp/takabb9055/31621362.html (http://blogs.yahoo.co.jp/takabb9055/31621362.html)
when I saw this for the first time I had to try it myself!
Hope you like some more information about small wahwah builds.
I'm currently using a white led, but need to check which color works better.
Cheers,
Thomas
I am hooked on this :D
That is seriously awesome! I've been thinking about making an expression pedal recently, wonder if I can use the same technique... Amazing job, kudos!
Can you change the sweep and taper by using different shutter profiles?
Quote from: Leevibe on April 05, 2015, 01:54:38 PM
Can you change the sweep and taper by using different shutter profiles?
I guess yes, I started with a square shutter and the effect was only on one end of the movement.
i made the triangular/shark profile and it improved the sweep.
I guess you can change the sweep by changing the profile and the parallel/series resistors to obtain the sweep you want.
Edit.: Just checked it and the best led is the white one, resistance of the ldr goes down to 800 ohms.
I could remove the 470 resistor, so minimum would be 800. As the led is unprotected the leaking light and open enclosure, turned up reads a max resistance of 25k.
I imagine that with closed enclosure the reflected light could reduce this, if there is some.
One idea would be try to measure it with a protected led, so the light could only shine forward, to the shutter/ldr
Thomas