The "35-cent" Commodore 64 softmodem (blogspot.com)
Rockwell famously used 6502-based cores in modems for many years, but that doesn't mean other 6502s couldn't be used. If only there were a way to connect a Commodore 64's audio output directly to an RJ-11 plug ...
Commodore 64, Retro Computing, Hardware, DIY Projects, Modems
125 points by todsacerdoti 34 days ago | 18 comments