two pedals in one box, volume and wah.

Fumi SG · July 18, 2005, 01:44:56 PM

My friend wants to have a Wah-pedal, but he also wants to have a volume-pedal. And since there are no pedals available (or they are way overpriced) I came up with the idea to build one myself. I thought about taking the Crybaby circuit, and put a DPDT-switch (or 3PDT, whatever) in it. Then take a circuit from a volume-pedal so that I can switch between the two circuits. It will also have two (expression??) pedals, so volume and wah have their own pedal. Then put it in one single box.

Is this possible, off course, but I want to be sure?! :wink:

I made a schematic, the red part is the volume-pot...

Fumi SG · July 18, 2005, 06:20:15 PM

I changed the link to the image, it should work now.... but does anybody know?? I also read something about tone-changes, depending on the volume of your pedal. Is this true??

Fumi SG · July 20, 2005, 06:19:07 AM

never mind... :?

waix · July 20, 2005, 06:28:13 AM

my guess is that it would work but i'm no expert
but why using 2 expression pedals ? can't you fit it under 1 and then just switch?

Fumi SG · July 20, 2005, 06:59:25 AM

I don't think your idea would work, because then you have two seperated circuits. Once you've changed the volume (on your volume-circuit

), you switch to your wah-circuit but then your volume-circuit isn't used any more, the signal doesn't go through your volumepot anymore. That way it doesn't affect your sound, so it doesn't work. Right? :wink:

Paul Marossy · July 20, 2005, 10:45:31 AM

I prefer to have a seperate volume pedal from my wah pedal. Here is one way a wah/volume pedal has been implemented:

dr · July 20, 2005, 01:42:22 PM

.....check out your input switch-you have the pivot point monted to bypass mode-you should either mount the pivot to the input jack, or the 68k resistor...

dr · July 20, 2005, 01:49:00 PM

....forgot-that was meant for Fumi.......-Paul, yours is the way I wired my Vox (except I used a dual 100k pot,with my extra switch mounted in the back heel of the pedal housing) so when I go all the way back,the volume is already at its lowest and in "W" mode......sounds weird when both are on at the same time......

Paul Marossy · July 20, 2005, 01:58:35 PM

Quote from: dr....forgot-that was meant for Fumi.......-Paul, yours is the way I wired my Vox (except I used a dual 100k pot,with my extra switch mounted in the back heel of the pedal housing) so when I go all the way back,the volume is already at its lowest and in "W" mode......sounds weird when both are on at the same time......

That's clever. :wink:

Fumi SG · July 20, 2005, 02:45:56 PM

Quote from: Paul MarossyI prefer to have a seperate volume pedal from my wah pedal. Here is one way a wah/volume pedal has been implemented:

*Maestro Boomer 2 schematic*

What you prefer is exectly what my friend prefers. He wants to have two seperated pedals in one box. But my main concern was the volume-circuit. Is that nothing more then a potmeter, or are there also any resistors, caps, whatever attached??

@dr... I don't really get your idea. Could you explain it in a different way??

Paul Marossy · July 20, 2005, 03:53:34 PM

QuoteWhat you prefer is exectly what my friend prefers. He wants to have two seperated pedals in one box. But my main concern was the volume-circuit. Is that nothing more then a potmeter, or are there also any resistors, caps, whatever attached??

Oh, OK, now I follow. Yep, a passive volume pedal is usually nothing more than a pot connected to an input/output jack that is controlled by a foot pedal.

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two pedals in one box, volume and wah.