my pdp11/53 and pdp11/73

On Mon, Nov 25, 2013 at 1:21 PM, Andriy Romanenko <bigral at hotmail.com> wrote: I haven't used an Emulex UC07 myself. One of those should work fine, except that they are either MSCP, or TMSCP, but not both at the same time. So you couldn't install from a SCSI tape drive to a SCSI disk drive at the same time with a single UC07, unless you have the more expensive dual controller versions. As an example I suppose these UC07 currently for $239 aren't too bad of a price if you want to get a Q-Bus system going with SCSI disks and can't find anything less expensive: http://www.ebay.com/itm/141122593003 I have a few CMD CQD controllers and paid less than that for them on average over the years although I haven't looked at their typical price and availability on the usual sources recently. The CQD-200 and CQD-220 were sold in /M (MSCP only) /T (TMSCP only) and /TM (both TMSCP and MSCP) versions. The /M and /T versions can be converted into /TM versions by swapping the EPROMs and CSR decode PAL. I have also used Dilog SQ706A and SQ3706A controllers and they also work well but are MSCP disk only. I got one SQ3706A cheap as it was sold as a SQ3703A TMSCP tape controller and I just replaced the EPROM with the MSCP version. -Glen