This is a little circuit board that adapts a ribbon cable to a DB25 connector, and fits inside a DB25 shell (that's intended for ribbon cable). I tried it using a Berg connector but couldn't get it to fit inside the shell, so this uses a permanently soldered ribbon header. The part numbers are on the schematic, and the Gerbers are all ready to be sent to OSH Park. This is a link to the project page, so you can order blank PCBs without re-uploading the files.

John Wilson