Homegrown modem from days of yore
From the MAKE: Flickr pool Anachrocomputer shares with us this handmade piece of digital days gone by – Top view of the 300 baud acoustically-coupled modem that I built in 1984. I made the double-sided PCB myself with an etch-resist pen (Dalo pen) and some rub-down transfers. The main chip is the Motorola MC14412V single-chip […]