The unobtainium piece of the Seequa collection has arrived, and wow is it smaller than I imagined! The Tabor 3.25” drivette for these little disks were designed in a collaborative effort between Dysan Corporation from California, Tabor Corporation from Massachusetts, and Seequa Computer Corporation from Maryland. These rigid plastic disks could hold 500K on a single disk, and were to be the new “golden standard” of format for any luggable IBM compatible.

I will have my 3.25” disk, my NOS Drivette, and the Tabor edge adapter on display alongside my Seequa research at VCF East and VCF Midwest!

#vintagecomputing #seequa #floppydisks

@mcjonestech Interesting. I need to look into this and see how they compare against those sony rigid disks that Amstrad (and spectrum after the purchase) used.
@lonelyautomata Hi! I can confirm this has the flop of a 5.25", but has the metal ring like a 3.5". It is like a weird hybrid of the two! I'm blanking (too early in the morning), what was the capacity of the 3" disks Amstrad used again?
@lonelyautomata Here is a sheet on the TC 500 drive, for your reference.