> About 'cosmetic' mods, I was wondering if it's possible to replace the
> red (or blue) LEDs by some exotic colored ones (I'd love to have a
> flashy disco vocoder !). Which type of LEDs would fit and which would not

All 3 mm LEDs will work (except the vactrol modules A-101-x and the VC
panning A-134). Only the brightness will vary. The red LEDs used in the
A-100 have ~ 5 mcd @ 60 degrees viewing angle (Liteon LTL4211N).

Best wishes
Dieter Doepfer