[Coco] 3.5 inch floppy drive

James C. Hrubik, Sr. jimhrubik at earthlink.net
Wed Feb 23 19:52:05 EST 2005


Just remember that your controller may not handle HD drives properly.  
The 3.5 drives are electrically compatible with the 5.25 DD drives, 
BUT...  if you format a 3.5 disk on the PC, it has to be DD formatted 
(720K), not HD (1.4M) formatted.  Then you can read it on the CoCo with 
the PCDos utility under OS9.  And I _think_ (rusty, here <G>) you can 
access it as a normal 40 track SSDD drive under RSDOS.  Make sure you 
have the drive jumpered properly (D0 or D1).

On Wednesday, February 23, 2005, at 05:46  PM, David wrote:

> Hi all,
>
> just a quick question before i start ripping things apart...
>
> I'm unable to get a 5 1/4 inch drive working in any of my pc's (long 
> story)
>
> I do, however, have spare 3.5 inch drives, with both the 'new' and the 
> 'old' style cable/power connectors..
>
> I have a home-made dual-drive setup that another list member build, 
> and graciously donated (Thanks, Stan!) - is it likely work if I 
> replace one of the 5 1/4 inch drives in that set up with one of my 3.5 
> inch drives?
>
> Can I then write 3.5inch disks using my pc and have the coco read 
> them/transfer them to 5 1/4 inch disks if necessary?
>
> Having my new Coco setup is no fun, as I'm unable to get any software 
> for it!
>
> Regards,
> David
>
> -- 
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco
>
>
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