Jerry Weiss <[email protected]> wrote: > On 2/12/20 11:28 AM, Noel Chiappa via cctalk wrote: > > > > That fourth card (M7268) is apparently a connector card for the Q-Bus > > > and drive bus. > > > > Yes, but actually there are 6 cards: the M7269 is a dual card which goes > > into the QBUS backplane, and the M993-YA which goes into the first RK05, > > to convert from the two flat cables which come from the M7268. > > > > > From: Al Kossow > > > > > Also, it is only 18 bits. > > > > Actually, only 16-bit DMA addresses, I'm pretty sure. > > > > Noel > > That's what is documented in Micronote #5. There is a comment in the > 15-Dec-1994 DECUServe Journal that says it can be modified for 18 bits > from Alan Frisbie.
Yes, it can, and it works well. I ran RSX-11M from RK05s on my 11/73 system. I even managed to find the article I wrote, on a 1986 backup of an RSX-11 disk, now loaded on SIMH on my Alpha/VMS system. I have already sent a copy of the RUNOFF file (and resulting text file) to Dave McGuire, who tracked me down, and will do so for anyone else who would like it. I also have the RKV11-D manual and print set, but they are buried in one of the many boxes in my shop, so it might take a while to find them. If you need them, let me know and I'll dig them out and scan them. Alan "Packrat" Frisbie
