[Coco] Jumper settings needed

Bruce W. Calkins brucewcalkins at charter.net
Thu Oct 2 21:36:52 EDT 2008


> As a side note, my search for M4853 returned dozens of replys
> (no jumper data) and about 2 dozen claimed that it is a 360K
> drive. One claimed 400K (vote for 360!). One claimed 0.72Mb.
> One claimed 80trk, 720Kb. And one claimed 96tpi, 720Kb.
> Dern, now I don't know for sure ?WHAT? I have...
> Possibly the difference between M4853 and M4853-1 could
> perhaps be the track density....48tpi vs 96tpi??
>
> Confusion reigns.
>
> cheers & thanks again,
> johnd


>From TechRef, First Edition by Thomas J Glover and Millie M. Young (c) 1996;
Under the Mitsubishi section of the floppy drive chapter;

4853 = 5.25", half height, 720kb, DSQD

FWIW;
4851 = 5.25", Half height, 360kb, DSDD
4852 = 5.25", Full height, 720kb, DSQD
4854 = 5.25", Half height, 1.2Mb, DSQD

Bruce W. 




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