I have one AT&T 1600/6250 in a rackable case (no rails.) There is no obvious model # but it's an HP rebadge, likely of the 88780. It has the Pertec (non-SCSI) interface so it's of limited use to me but may be a good fit for a minicomputer. Other than powering up, I haven't tested it, having no suitable interface, but it looks clean. If I have time I may be able to run a blank tape through its self-test routines. Pickup is in the NW Chicago suburbs (60070.) If you're coming in for VCFMW, that would be a perfect time. It's a bit heavy to bring down to the show but home is not too far from the venue. -j