[Coco] [Color Computer] Atari ST floppy for Coco?

[Sylvain De Chantal]

Hi folks,

Just wandering if a Sony MP-F11W-5DU for an Atari ST 
would work in a FD-502 ?

What i've found about this floppy drive that they are
industry standard 360K or 720K (mine's a 720K) double-
density floppy drives, exactly the same as those in PCs 
and on the web page of Techno's CoCo Floppy Page, he writes
this:

FD-502 (26-3133) 
This drive unit is like the FD-501, with two notable exceptions. 
This is the only Tandy model ever to incorporate true double-sided 
drives, and its drive power connectors are like those of typical 
3.5" floppy drives rather than those of normal 5.25" drives. The 
smaller power connectors are also reportedly wired differently than 
typical 3.5" drive connectors. As noted elsewhere, either a patched 
Disk BASIC or an alternative operating system is required to gain 
access to the second side of disks. A cooling fan must be installed 
for safe operation if a second drive is added. 

CoCo Use With Non-CoCo Drives:
3.5" 1.44 meg drives can sometimes be jumpered to function as 720K 
drives; one should always use true 720K media when doing so. The 
previously-mentioned hack for the original 26-3022 controller may 
make these drives useful (under patched Disk BASIC or OS-9, of 
course) as true 1.44 meg drives; I have not attempted to implement 
that hack. UPDATE: supposedly, just the act of using true 720K media 
(without the high-density hole) will make a high-density 3.5" drive 
function as a double-density drive. I intend to confirm this. 

So would the Sony MP-F11W-5DU would work in a FD-502 ??

--- Sly DC ---

 





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