ot question DX7

[Smits, Eduard]

Hello group,

ot but not completely:

Is there anyone out there who owns a Yamaha DX7II with a Grey Matter E!
card for it???????? We wanna make a clone for it (so that's the DIY part
of it), but need one for the schematic/PCB-layout and ROM content. And
yes I know this is "stealing" someones idea BUT we (several DX7II and
DX7 owners) have repeatedly asked Grey Matter to come out with a renewed
production of the E! card (it's out off production for many a year now)
but they won't/cannot comply.

Regards, Ed