HP 9121

While dumpster diving at the end of a radio rally (what, doesn't everyone do this?) I found, in with the usual PC scrap, an HP 9121 dual disk unit. The unit powers and a small LED flashes five times but that's as far as I've got because I've not got anything to plug it into. I take it I can use DSDD 3.5" disks in this and that with a General Instrument HPIB card and some hand rolled code I can try it out. Anyone done this? Any pointers to where to start? Any online docs for the command set/protocols? Cheers, Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________