[Coco] question about 3.5 inch floppies

[Paul Fitch]

Floppydisk.doc sells them, and 5.25" disks to.  I just bought some.  Haven't
tried them yet, but they were new in the box. 

> -----Original Message-----
> From: coco-bounces at maltedmedia.com 
> [mailto:coco-bounces at maltedmedia.com] On Behalf Of Gene Heskett
> Sent: Monday, August 03, 2009 10:00 AM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] question about 3.5 inch floppies
> 
> On Monday 03 August 2009, Stephen Adolph wrote:
> >Hi,
> >
> >Another dumb question-
> >
> >A 3.5 inch drive will work like a 720k drive simply by placing a DD
> >(720k) disk into the drive, right?
> >
> Generally, yes.  Unforch, finding DD disks can be 
> frustrating.  Taping over the HD hole usually doesn't work as 
> the switch in record drive currents then results in a weak 
> recording, one that may or may not be readable an hour later.
> 
> >So, to use a 3.5 inch floppy with Nirtos-9, one merely needs to have
> >it be plugged in, and make sure to use 720k floppies.   The 
> disk drive
> >will operate correctly. (?)
> 
> If the descriptor is properly dmoded for 720k, usually yes.
> 
> >Interestingly, I have 3 different versions of the same Panasonic 
> >JU-257.  Only one of them can be selected to be drive 0 or 1.
> >
> >I think I have read that, in the coco, you want to use hard drive 
> >selects...no twisted cables.
> 
> That is best.  The drive cable adapters can, if all traces 
> are there, be where the drive select signals are swapped 
> around, allowing one of the fixed at drive 1 drives to be 
> used as 0 or 2.  Terminations on 3.5" drives could be a 
> problem too, and one should check to see if the pc's twisted 
> cable also somehow enables the terminators for drive 0, out 
> on the twisted end of the cable.  Its not something I have 
> attempted here, my drive 0 is a 5.25, 360k drive, 2 is a 720k 
> 5.25, and one is whatever is plugged in at the time, boot 
> default for drive 1 is a 720k here.
> 
> >thanks, Steve
> >
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> 
> 
> --
> Cheers, Gene
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> 
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