It also has a place where another dual row header could fit. The other dual row of holes are slightly staggered, so that wouldn't be for a pin header. There's also a couple of spots for jumpers that aren't installed.
My bet is this version pretty much went direct from late prototypes to production, with a bit of cleanup through not installing components for whatever features they'd decided not to use. The next step would have been to completely purge all the unused bits from the design to shrink it into a standard 3.5" bay and the external versions. I never had a problem with click of death with this drive. One time I popped a disk in that made noise and I quickly got it out. The disc had a torn edge but fortunately it didn't damage this drive. At the time I had been getting many destroyed internal IDE and ATAPI Zip drives in the shop with the heads ripped off by damaged discs. This early SCSI model seems to be much tougher built than the middle production models with weaker magnets that don't resist outside magnetic fields well enough to prevent the alignment problems that lead to damaging discs. (In other words, parking a Zip drive close to a CRT monitor that has less than great shielding is not a good idea.) --- On Sun, 12/12/10, Wesley Furr <[email protected]> wrote: > Very interesting...looks more like an > external unit retrofitted to work > internally. The first internal zip drive I recall > working with was blue > (that color scheme for internals didn't seem to last > long)...as I recall it > was SCSI (actually I'm sure it was, the IDE's didn't come > till later on), > but it was 3.5" in a 5.25" drive bay adapter that was also > blue...of course > you could take it out of the adapter and it would go in a > 3.5" bay. > > It would be interesting to take apart an early external zip > and see if it > looks like your internal unit... > > Wesley > > > -----Original Message----- > > I happen to have an early internal SCSI Zip 100 drive. It > has to use a 5.25" > half-height bay because the circuit board is wider than the > drive mechanism. > > Pics here. http://www.flickr.com/photos/27748...@n08/ -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/
