DIY 8-bit computer, Episode 18: Memory & peripheral PCB

In this video, we assemble and test a PCB for the memory and peripherals module, to replace the hard-wired protoboard module. The PCB also adds support for proper RS-232 serial, meaning we can do weird things like using a Wyse WY-75 serial terminal to connect to the 6809 system.
Schematics, PCB designs, and code are on Github: github.com/dav...