Olivetti 3MB ST506-interface drive?
jules.richardson99 at gmail.com
Sun Mar 13 14:38:25 CDT 2016
On 03/13/2016 01:15 PM, Chuck Guzis wrote:
> Hard drives smaller than 5MB were not unusual. For example, the Rodime
> RO-101 was only 3MB.
Interesting... I've had 'real' ST506's before, but I don't think I've ever
seen or heard of anything less than that (in a 5.25" f/f)
> My list shows Olivetti-branded drives starting at 10MB forever. So
> probably someone else's drive.
Right, they did a 10MB and 20MB, but I've not heard of anything else...
These 3MB ones were definitely Olivetti - this was from an ex-Acorn
employee who worked on the drive project. 3MB to 20MB seems a big jump -
but it makes me wonder if they were working with drives that had three
surfaces masked out due to manufacturing defects; one surface would be 5MB,
and going from 3MB per surface in a pre-production drive to 5MB in the end
product wouldn't be such of a leap.
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