Using the HP1630D Logic Analyzer with the 8031/8051 Microcontroller to Reverse Engineer its Code 

Thanks for the very useful video! I have a 1631D that, after a maintenance and minor repairs, runs as good as it did 35 years ago. The only complaint, besides the rather large size, is that you have to set the date and time every time.) I love going back to the electronics of the 80-90s, because that's what I grew up with.

Very informative! I have the 16500A and still looking for conversion kit for the booting.