*Delurk* I've looked at that DIY site and was quite impressed, but wouldn't know where to start sourcing components etc, and haven't soldered anything since I was a kid. What I'd ask of the original poster is do you have ANYTHING apart from your keyboard which has MIDI. I use a drum machine for a midi controller. You could find something like that on the second hand market for less than the price of a dedicated midi box, which also does something on it's own. Depending on your PC's midi interface, you could probably pick up a second hand EA1 (for example) for the price of a box with the same number of knobs, and no synth inside. cheers, pompomtom "There's an exception to every rule, except for some rules."