Diagram for making your own cartridges?

[mataloger]

Jim, I've updated your design as well, primarily to use a currently-available flash chip, as the AM29F080 hasn't been available for a while.
Sharing Gerber files here for anyone who wants to build and test one with me; the circuit is fundamentally unchanged, so it SHOULD work, but this is also my first KiCad edit more complex than an RS-232/Z88 DE-9 converter and my first 4-layer board, so I would be ever so grateful if people would take a look at the board and point out any bonehead mistakes I made.

Brilliant work everyone.

Okto, which specific chip did you redesign the board to use? I didn't see that mentioned anywhere

Moderator note: edited to remove excessive quoting. Mark.

[1024MAK]

sidenote: how do I declare image size, so these don't render so huge?

Resize the image / picture and attach them using the attachments tab.
You can always use a link (URL) to a larger image or attach the larger image in a zip file.

Mark