Modify Your Wah Pedal

Step 2 True Bypass

So when your have you pedal off it doesn't affect your sound right? WRONG!! You may have noticed that even when off some of you effect pedals "suck" the tone from your guitar. A better explanation can be found Here.

I chose to remove the input buffer because it seemed to be the most easily reversible and from what I read, sounds better.

1. Open up the case and remove the circuit board.
2. Desolder the components.
3. Desolder the switch.
4. Install the new switch. (i used a 3PDT switch. Check out ebay for good deals)

If you use a 3PDT switch you can also add an LED to you pedal but I didn't want to.

Check It Out

Comments

[alenchence]

Hi!
I have a problem:when I click on the link for the installation of a new switch,it says the instruction is no longer available,so please help me out!I would like to do this mod,tone sucking is driving me crazy!
Tnx

[mesaiphoneguy]

 will this also work on a 535Q crybaby wah pedal?

[rcrane]

Hey, I am stuck. I have a green board like the one above and it is labeled 'E". I did the following: Removed old switch Removed the buffer components replaced the 33k with a 68k replaced the 1k5 with a 2.8k installed a 3PDT switch My problem is that I only have four wires to attach to the switch: 2 blue 1green 1purple I dont see any pictures showing the installation of the 3PDT usingmy board. Do I need to install wires where I removed the buffer and solder that to the switch? I don't know how to configure the wires on the switch. Help!

[James Haskin]

I added a picture from step 3 to step 2. My pedal is also a green E type board but all of dunlops circuits are so similar (except fro maybe Dimebag's Wahs from hell) that the wires from the top of the board to the pot and switch are the same.

Using switch diagram 5 as a reference tool.
connect...
Both PCB and Pot Blue to 7
PCB Purple to 8
PCB Green to 9 as well as a jumper to 1
Connect the transistor jumper to 2
and the resistor jumper to 3

[rcrane]

Got it! Sounds much better. Thanks for your help. I am still experimenting with the pot range. But MUCH more vocal and quiet! thanks again

[rcrane]

James, Thanks for the quick response! So that explains how to wire the existing wires. I only changed two resistors and changed the switch, so I will attach the wires like you said and then I just need to add two wires to the area that I removed the buffer and wire them to 3? rcrane

[oweng4000]

I had an idea for a mod that i hope will work. a switch on the side in order to switch inductorPr

[James Haskin]

Sounds like the MXR Custom Audio Electronics MC-404 Wah. Check it out.

[ReoTheYokel]

You can prevent "sucking" the tone by using one of those True Bypass pedals. Or something like that. Justin Sandercoe reviewed it in one of his videos on Youtube. But, yeah, this is cheaper.

[James Haskin]

The way I wired it, using the switch, this pedal is true bypass.

[James Haskin]

http://www.youtube.com/watch?v=M7QL37nKcR0
Oh this is pretty cool. I actually like leaving my wah in a position at times but this it pretty cool. I'll buy one of these for the dimebag wah from hell. It would be great soloing.