Model Reel Density Date Speed 1200 7" 200 7/71 incremental battery powered 1530 10.5" 200 7trk 2/70 incremental 1600 8.5" 800 7trk 2/70 incremental 1600/360 8.5" 800 9trk 2/70 incremental 1610 10.5" 800 7trk 2/70 incremental 1708 8.5" 200/556/800 7/9trk 10/71 incremental (?) 2800 8.5" 7 or 9 trk 4/70 10-15 2812 8.5" 7 or 9 trk 4/70 10-15 3110-02 10.5" 7trk write-only 4/70 25/37.5/45 3110-03 10.5" 7trk read-only 4/70 25/37.5/45 3110-04 10.5" 200,556,800 7trk 4/70 25/37.5/45 3110-05 10.5" 9trk write-only 4/70 25/37.5/45 3110-06 10.5" 9trk read-only 4/70 25/37.5/45 3110-07 10.5" 800 9trk 4/70 25/37.5/45 3112 10.5" r/w read after write 7/8 trk 4/70 25/37.5/45 8107 10.5" 200/556/800 7trk 1/72 37.5/45 8108 10.5" 800 9trk 1/72 37.5/45 8109 10.5" 800/1600 8trk 1/72 37.5/45 8197 10.5" 200/556/800 7tk 800/1600 9trk 7/71 10-25 *read-only drive 8208 NRZI Formatter (8107 - 8109) 8216 PE Formatter (8109) 9000 10.5" 800/1600 45 9100 10.5" 800/1600 75 9219 Formatter 9220 Embedded Formatter 9300 10.5" 800/1600 125 9400 10.5" 800/1600/6250 75/75/45 9610 10.5" 800/1600/3200/6250 100 streaming 50 start/stop 9660 10.5" 800/1600/3200/6250 100 streaming 50 start/stop 9700 7" 800/1600 37.5 9800 8.5" 800/1600 37.5