Hi Daniel & grant, thank you for your answer !
I suspected someone did it before, but didn't look further...Actually, I have a bunch of 27C801 in the bottom of a drawer and wondered what to do with them ;-)...
@Daniel
For now, I only ordered the regular 3 pieces batch from OSH; there's one unpopulated card left, the two others acted as prototypes...The total amount for that batch was 45�, so a card price is 15�. Including EPROM, all the components and shipping costs, I guess a total amount of ~30�...
There's no problem for me to burn your own SYSEX : you've just to send me the list of the patches you want to be included in the EPROM ;-)...
I don't plan to design cards for other machines, as long as I don't own them ;-)...Maybe later, I'll cogit about an Arduino/SD Card interface for my DX7...
@grant
Yes, I noticed the existence of cards using PCB traces for contact...the thickness of the PCB sold by OSH seem to be satisfactory, I didn't encounter problems of bad contact...Of course, it's necessary to see in duration after many insertions/extractions...I can't tell, it works perfectly for now !
Of course I would be glad to make the board available on OSH; I'll see how it works.
Chris.
