Hi guys,

I have built a reader for old ROMs and uploaded the code here: https://github.com/Luz/sega-rom-reader

The teensy 3.5 was used because its inputs are 5V tolerant. For the outputs, the 3.3V are also compatible with the TTL logic, since 2.4V is accepted as high.

Here are some pictures:

The "wire wrap"-technique was used because I love it.