Ian,
Do you have the disk controller board for the B80? I developed it back in
1973. If you do could you email me a jpg of it? It has a certain nostalgia
value.
It is also the first ASIC disk controller in the industry, and I'd like to
at least get the photo into the Computer Museum in Sunnyvale.
If there is any thing I can help you with on the machine, just let me know.
I also ran the team that developed the floppy disk drive on the unit.
Jim O'Reilly