Curious how the CPU works with the RAM chip at IC13 missing? Is there some sort of Sys 6 mod I'm not aware of?
I have 2 waiting for me on the bench, so I'm curious.
You use a 6802 processor , remove jumper J1 and install a 4.7K resistor at R4.
This enables the 6802's internal ram and you don't need the 6810 at ic13 anymore.
