Strange Old Disk

From: Tom Uban <uban_at_ubanproductions.com>
Date: Mon Mar 1 09:02:32 2004

Tim,

That appears to be a fairly common disk pack as used in drives such as
an DEC RK05 and similar. There were a number of drive manufactures who
used that style of disk pack. The number of notches (sector markers) in
the bottom metal hub ring will give a better idea of what machine the
pack was likely used with. Also, if there is a density marking, that
would also help.

--tom

At 11:09 PM 2/29/2004 -0500, you wrote:

> I picked this disk up the other day knowing almost nothing about
>mainframe storage methods. I've spent hours upon hours trying to figure
>out what exactly this is but the closest thing I can get to it is an
>RL02 removable cartridge disk, but it's not (I think)! I don't see how
>the same drive could read these since the holes are so much different,
>but it's the same general idea.
>
> I'm not sending attachments, I put them on a
>site for you to look at, the url is
>http://www.spiritsphere.com/14inchdisk.html ,
>any and all information you could give me about this disk would be
>greatly appreciated, I'm still in the dark about it, and have found very
>little reference at all to CDC ever making a cartridge like this.
>Thank you!
>
>
>Best Wishes :)
>Tim
Received on Mon Mar 01 2004 - 09:02:32 GMT

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