RJT>*Way* back when,  I actually tried to swap boards to get a HD going,  that
RJT>a couple of different revisions of ST251,  40M MFM drives,  and since one h
RJT>red LED and the other a green one,  it didn't work,  the revisions of the b
RJT>were too different.  No way I'd even think about trying that these days.

I had that one work one time with a 40 Meg MFM drive.

RJT>Particularly since the bad sector and bad track mapping is probably put int
RJT>that eeprom at the factory.

Very true. You would most likely have the drive fail to format becasue
of the Bad Sectors.
---
 þ SLMR 2.1a þ This note from El Cajon California USA