[Coco] 1.2Mb floppy drives

[Gene Heskett]

On Tuesday 07 March 2017 16:33:11 Kip Koon wrote:

> Hi Gene,
> Do you know where the documentation for this jumper is located.  I'm
> very willing to try it on one of my 1.2MB floppy drives if I can
> locate the instructions.  I remember seeing a youtube video on this
> once.  I'll have to go look that up again and see how detailed it was.
>
> Kip Koon
> computerdoc at sc.rr.com
> http://www.cocopedia.com/wiki/index.php/User:Computerdoc
>
I MIGHT have the docs on a teak-mumble-55G someplace, but ATM, no clue 
where in tis midden heap.  Nothing else, and there were several other 
makers besides Teac.  Best bet is google the exact model number you 
have, and see if there is any mention of it in the google hits.
>
> -----Original Message-----
> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Gene
> Heskett Sent: Tuesday, March 07, 2017 2:07 PM
> To: coco at maltedmedia.com
> Subject: Re: [Coco] 1.2Mb floppy drives
>
> On Tuesday 07 March 2017 10:29:01 Bill wrote:
> > Has anyone figured how to use 1.2Mb floppy drives with the Coco
> > (EITHER NitrOS-9 or RSDos).
>
> Someplace on the board on 90% of those is a poorly labeled jumper,
> that converts the 360 rpm disk motor to a 300 rpm like the rest of our
> drives. And at our 250 kilobaud data rate, they make great 720k drives
> but do need the harder magnetically HD disks to work well over an
> extended time frame for storage in your disk vault. I did some testing
> back then and found the softer disks were more prone to data errors 6
> months later. This is the opposite effect of using a 3.5 HD disk in
> the DD drives by taping over the HD hole.  That turns the recording
> drive down, and 6 months later you may have a pretty good imitation of
> a blank disk.
>
> > Since 180Kb and 360Kb are getting as scarce as hen’s teeth, I need
> > SOME kind of 5 ¼” drive, or I have 578 5 ¼” coasters.
> >
> > Thanks
>
> Floppydisk.com is still alive and well but apparently out of 5.25"
> disks, but 60 bucks will get you 50 brand new 3.5" DS/DD diskettes.
> Scroll down to near the bottom of the page.
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>
>
> --
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>