Olivetti 3MB ST506-interface drive?

[Chuck Guzis]

On 03/13/2016 12:38 PM, Jules Richardson wrote:

> 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


Do you have a part number for the Olivetti drive?  I think that taking a 
10MB drive and downgrading it to a 3MB one wouldn't be a paying venture.

--Chuck