Your original CPU was made in the 29th week of 1983, the replacement was made a few weeks later in week 37 of the same year! Would be cool to see whether the pin you previously tested on the oscilloscope shows the signal now (imagine it would since it's working). Hold on to the other board for spare parts. Nice job Mike!
Thanks! Unfortunately, I don't have access to that oscilloscope at the moment. I'm not sure what to do with the spare board. Maybe someone else will need it.
