WOOHOO! WAHWAH!

[Matthew Porth]

        Not very exciting (in fact it's very simple). Got my first 'mini' 
     project working last night (god it was a long 'un).
     
        My YS200 now has a wah wah pedal attached to its breath controller 
     port. I had an old Mister Cry Baby (which is broken beyond all belief) 
     given to me years ago by a friend. SO - I stripped out all the 
     components and plugged in a 250K pot and a ~100K resistor and now I 
     can pedal away the hours (the YS200 lets you modify the 'tone' of the 
     sound based on aftertouch or breath controller). I am very happy ;>
     
        Now I have done that the next big thing to do is to have the breath 
     controller wired to an external sound source and this my friends is 
     where I get lost.
     
        The control is resistance (current) based, a signal comes out of 
     the YS200 apply a resistance and feed that signal back in. How can I 
     get a 'line out' style sound source to modulate that signal (or is an 
     audio modulator exactly what I am looking for).
     
        If you can help me, if you choose to accept this mission please 
     send me any ol' details you care to send (text references, web pages, 
     schematics) etc.
     
        BTW if you can find old WahWah pedals (and they're pretty cheap) I 
     recommend these whole heartedly for 'live' control of sounds.
     
        Matthew.