What makes it capable of booting a 512K into 6.0.8? Is it the ability to hold the full install vs. trying to configure a System & Finder which will fit on a single 800K disk?
Also, this seems a little pricey starting point for an untested, very yellowed unit. I have an HD20 which does the exact same thing and will not load on a Mac, nor will it ever without a new drive mechanism. And without the unique drive, the box is virtually useless except as modified housing for another drive, possibly tapping the power supply which has the same specs as that used in Apple's external SCSI boxes. A much cleaner, fully tested functional one sold on eBay a month ago for less and
this one a week ago:
But thanks for bringing it to our attention, I'm sure the Hard Disk 20 needs no introduction as to its usefulness on this forum.