Question re: 8" drive form-factor

dwight elvey dkelvey at hotmail.com
Fri Jun 5 08:27:23 CDT 2009




----------------------------------------
> Date: Thu, 4 Jun 2009 23:52:48 -0700
> From: eric at brouhaha.com
> To:
> Subject: Re: Question re: 8" drive form-factor
>
> Steven Hirsch wrote:
>> I found the OEM manual on bitsavers and it's actually the 'R' model
>> that matches what I believed to the industry form-factor of 8.5"
>> width. The "standard" (non-R) model is 9.5" wide. Odd standard,
>> since I've never seen another 8" drive that size.
> Ah, that was it. They made the "R" model narrower to make it easier to
> fit them side by side in a rack.
>
> I'm guessing that the 9.5" size might match the size of the genuine IBM
> 33FD, 43FD, or 53FD drives. Although I have some 53FD drives, I've
> never taken them out of the equipment they're installed in, so I haven't
> had occasion to measure their dimensions.
>
> Eric
>
 
Hi
 I have both form factors in the 800 models and 900 modles as well so
it was used before the 851s.
Dwight

 
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