MFM/RLL data recovery

[Mike Loewen]

On Tue, 5 Apr 2005, Jules Richardson wrote:

> I was confused by the statement too. Are you saying that the same
> *model* of controller won't necessarily work (due to different
> tolerances in components say) - or just that different controllers that
> happen to use a few common chips won't work?

    From my recollections of working on XT systems in the last 80s, when 
swapping MFM controllers, you had to make sure they used the same chipset. 
For instance, a drive formatted by a WD controller would probably NOT be 
readable by a DTC controller.


Mike Loewen				mloewen at cpumagic.scol.pa.us
The Dixie Lion Jazz Band		http://ripsaw.cac.psu.edu/dixie.html
The B9 Robot Builders Club B9-0014	http://ripsaw.cac.psu.edu/~mloewen/B9/
Old Technology	http://ripsaw.cac.psu.edu/~mloewen/Oldtech/