Hi folks,
 > 3. same as 2. but only as a DIY project. It's very
 > simple. Most of the work
 > will be the front panel processing. The "electronics"
 > is only a few
 > resistors some potentiometers. I can publish the
 > schematics on the A-100 DIY
 > page.
This is a trap ;-) Mechanical front panel processing is the ugliest job
 while doing a diy module. I think, every synth-diyer, who is able to do
 good frontpanel processing and is able to solder, will be able to create
 the simple schematic for a crossfader on his own.
 Florian