I have a pre-amp pedal to use with my 147RV. For years. I played a 335 thru it, and often used a wah. Once, I played my C-1 thru the rig with a wah. Pretty cool! Of course, playing any old style Hammond with the 13 pin connector would be a challenge, wah or any pedal-wise, since the pre-amp was in the Leslie and there were no 1/4" connections.

It was done; i just don't know how!


Russ