It'd be interesting to find out how well that PRM-85 works. I've laid out a board for a rough equivalent but I haven't fabbed it out. It may be cheaper for me to buy that instead.
I've also got a 9122C but I don't have the mass storage ROM so I can't use it with my 85. Right now I'm using it with my 9000 series 300. On Tue, Nov 14, 2017 at 8:26 PM, Mark J. Blair via cctalk < cctalk@classiccmp.org> wrote: > > > > On Nov 14, 2017, at 20:11, Ed Sharpe via cctalk <cctalk@classiccmp.org> > wrote: > > > > wondervifcthec9122 drives,will work on 85? > > > > I think I can guess what you meant to say there... :) > > I’ve ordered a PRM-85 (a modern reprogrammable ROM drawer replacement) > which includes the HP-85B version of the Mass Storage ROM, and the Extended > Mass Storage ROM. Based on what I have read, I think that should let my A > model use the newer 9122C drive, and other drives using either the Amigo or > SS-80 protocols. > > I’d like to get the 9122C mostly because I have a much easier time finding > 1.44M media than the older double density media. eBay and I don’t talk, so > that limits my options a bit. If I had easy access to lots of 3.5” DD > media, then I would consider getting one of the more plentiful (?) other > 3.5” HPIB floppy drives. >
