Subtlesound Inductorless Wah!! ...What?

[puretube]

new: http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=JP2005110193&F=0

old: http://www.pat2pdf.org/patents/pat2173426.pdf

[4nkam]

Anyone have clips of this wah? Would it be possible to get close to this tone: http://youtube.com/watch?v=ctTFHbiP7wY

mJ

[mat]

Hi Carsten,

I would like to have the vero layout if You dont mind. I did not find it on Your layout gallery folder.

Mat

CD did this schematic a while ago. I have made a vero layout, if someone should need one.  However I have never build it, so its not verified.

Schematic here:
http://www.diystompboxes.com/smfforum/index.php?topic=25279.msg165637#msg165637

Regards

Carsten

[John Lyons]

I have a couple clips on my site: http://www.mrdwab.com/john/soundclipspage.html 
I like to replace the 33k with a 100k trimmer or panel mount pot and use that as a resoncace control. Makes a nice quack all the way up to self oscillation.


John

[cab42]

Hi Carsten,

I would like to have the vero layout if You dont mind. I did not find it on Your layout gallery folder.

Mat

I forgot to add it to my folder in the gallery, but I will do it tonight.

However I uploadad it to Bancikas site as it is made with his layout creator, so you can find it there in diy-format.

If you build, let me know how you get along.

Regards

Carsten

[MetalUpYerEye]

 
I had the transistor in backwards.

Everything works fine now, thanks guys.

[R.G.]

I had the transistor in backwards.

It happens to all of us. My favorite trick is putting in sockets for ICs and then doing debug on the bottom of the board where I have access to all of the voltages and currents but NOT being able to see that I did not put an IC in the socket.

That's a really frustrating one to spend a day or two on.

[Paul Marossy]

Glad you got it working! 

[MetalUpYerEye]

My favorite trick is putting in sockets for ICs and then doing debug on the bottom of the board where I have access to all of the voltages and currents but NOT being able to see that I did not put an IC in the socket.

Guilty. 

I was surprised that the wah actually wah'ed a little with the transistor in backwards. Like I said you have to rock the shit out of it to hear it but it was coming through a little. I guess if someone was looking for a subtle wah now we know what to do; build a Colorsound with a backwards transistor! 

[mat]

Hi Carsten,

I would like to have the vero layout if You dont mind. I did not find it on Your layout gallery folder.

Mat

I forgot to add it to my folder in the gallery, but I will do it tonight.

However I uploadad it to Bancikas site as it is made with his layout creator, so you can find it there in diy-format.

If you build, let me know how you get along.

Regards

Carsten

Thanks Carsten  I'll let You know when I have it ready (I'm terrible for having 10 unfinished projects at time..  )

btw. there was some letters overlapping on the file - not a problem tho'

cheers,
mat

[idlechatterbox]

Old thread, but I'll post my build report here in case someone does a search, mainly because my pedal was also what I'd call a "subtle" wah. Did the following mods, mostly because I didn't have some of the parts that were called for in Cab42's vero layout (and I was too busy to order them).

Mods:
1. didn't have a 5.7m resistor for R3. Used 6m instead.
2. used 2n2222. Seemed to be "brighter" than 5088 or 5089
3. for Sweep pot, used 120k, instead of 100k
4. did the recommended mod of replacing jumper with pot for Intensity. Used a 5k "fine-tuner" pot (not sure what else to call it, like a trimmer but in a regular size pot). Tried a 1k regular pot too. Could never get that much reaction out of it, though with the 5k there's a little change.
5. did the recommended mod of replacing R10 with a bigger resistor. Used 180k. Not sure how the build is without that mod, as mine had a serious volume drop with the 47k. Originally, I had a 100k pot in there that I used as a volume control. Worked good, but I didn't have space in the enclosure, so went back to the fixed resistor. 
6. experimented with C5. The schem calls for .0068uf. That works, but to my ears was too bassy with humbuckers. I rigged a DPDT so that I can switch between that cap for single-coils and a smaller one for humbuckers. Made a big difference.

Didn't build mine with a rocker pedal. Just stuck it in a regular enclosure. Subtle, but good wah tone. With the pots maxed out, it creates a really nice Trem/Vibrato tone. I mainly use it for that. In fact, I ditched my Danelectro vibrato I liked the Colorsound so much. 

[Exactopposite]

this has me curious about the circuit in my inductorless colorsound. I may just take the board out so i can get a good look at it and draw up a schematic.

[cab42]

Quoting from the absolute favourite build thread.

Colorsound Inductorless Wah

1. very intuitive vero layout, thanks to Cab42

Does that mean that my layout is verified? Never got around to build it myself.

Verified. One thing: on the copy that I downloaded, I think that there's a typo for C7. It lists the value as .0022pf. I assumed that was supposed to be .0022uf. Either way, thanks for the layout. I should probably post a "build report" in one of the Colorsound Induct. Wah threads, in case others are tempted to build it too. 

Thanks, I'll check the schematics and change the layout if necessary.

Edit: IdleChatterBox is correct, the value for C7 in my layout should be 0,0022uf NOT 0,0022pf. I'll try to fix it soon.

Regards

Carsten