3 May
2009
3 May
'09
2:55 p.m.
The 820-II 8" samples in my library show 77*1*26*256 and 77*2*26*256
formats. My 820-II drives were originally SA-800 single-sided
models, replaced with double-sided units.
I believe that alternative ROMS were also offered by third parties.
I believe that there might be source code for the BIOS ROM for the
820-II wandering around also. There certainly is for the Ferguson
Big Board, which is a close relative.
--Chuck