steve.howell{at}altium.com.au wrote:
> It plugs up ok - even polls a few times - but im not sure if the
> firmware of the card is expecting a hard disk sector to respond.

You may have done some electrical violence to the drive and/or
controller.  This controller was not designed to attach such a drive,
which was very specific to the early Mac.

That's why it's valuable to early Mac users, but just "hardware" to
anyone else.

> A shame really - it would have been interesting. I expect I wont be
> selling this unit, but more carefully taking it apart to take another
> snap shot at what apple was designing with this sort of technology
> back in 1985, and poping it up on my webpage - maybe even extracting a
> bit of info to get any aspects of it into the FPGA domain. This
> particular design is loaded with a lot of European devices (including
> a Rodime hard disk, whom, mr rodime, the lucky bugga, now lives off
> royalities for the HD technology almost exclusively) - so with all
> these euro bits, it really looks like a corke project.
> 
> Beautifully made, as was all of apples stuff of that era.
> 
> steve
> 
> 
> 
>> I would not even attempt it. An HD20 is worth a lot to the right Mac
>> crowd. You can probably get enough money out of it to cover one of the
>> variety of other mass storage solutions available today (CF, Focus,
>> SCSI, etc.)

-michael

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