Hi folks, Recently I posted that my MicroPDP-11 is up and running. A question I had still is not answered and I was hoping somebody here could help. The machine has a Syquest cartridge drive. It is a model SQ 312RD. I tried searching the web for info on this model but could only find a reference to it having 2 heads and 615 cylinders. This figures to 10,705,920 bytes capacity assuming 17 sectors per cyl and 512 bytes per sector? 10 mb cartridge size then, correct? I have no other info on Syquest except they are now dead (their websites still turn up in search engines but there's no response.) Anybody fill me in on the specs, etc? Cartridges available for the SQ 312RD???? Any other tape/cartridge drive available you recommend I should replace this with? I have an Emulex TC02 controller in this box. Don't even know if the Emulex board works as there's no cartridge to try the Syquest with. Is there a Pertec-formatted tape drive which can hang off the Emulex which is half-height, 5.25" form (to replace the Syquest)? This is ideal since I can keep the 5.25" floppy drive. What if I find an external-mounted TK50 drive and TQK50-AA (M7546) controller and fit it into this system? Is this workable? Will RSX-11M+ ver. 3.0 handle a TK50?? Software drivers?? I have no other way to back the system up at this time (floppies are probably out of the question because of quantity needed and huge PITA-factor) Thanks for the help! Regards, Chris -- -- Christian Fandt, Electronic/Electrical Historian Jamestown, NY USA cfandt(a)netsync.net Member of Antique Wireless Association URL: http://www.ggw.org/freenet/a/awa/