Apologies if this is not the right place for this. I'm trying to help a friend out with a project, he's trying to build one of the copybit strippers that was published in Elektor about 20 years ago detailed here http://www.minidisc.org/copybit/copybit.html It's a clever design that uses a ROM based state machine built of jellybean parts however he has been unable to find the code for the ROM and my Google-fu has come up dry as well. It was at one point offered as a kit but it seems that company