Restoring a Fujitsu FM-8 computer #VintageComputing
Mike on the Leaded Solder blog got a really good deal on a Fujitsu FM-8, the big, brown predecessor of the FM-7. It was missing a few parts and needed some care.
Officially the Fujitsu Micro 8, the FM-8 was one of Fujitsu’s earliest PCs, released in early 1981. Fujitsu made revisions while also taking a lot of features off this machine in order to make the cheaper FM-7 the next year, but the FM-8 had a large following of hobbyists that made the machine special.
Like the FM-7, the FM-8 system runs dual 6809 CPUs, with one normally dedicated to graphics. You could also upgrade the system with an MB22404 8088 board, or an MB22401 Z80 board, if you wanted to run alternative operating systems like CP/M-86 or CP/M-80 respectively.
The CPU is missing! Not both of them, just one of them – the main MBL68A09!
Check out how the system was restored in the post here.
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