DW11-B (was Re: VS11)

Was the genuine IB11 a normal Unibus card? I've never seen one, I have several IBV11 cards in MINC machines. I pulled the processor and RAM out of one of the MINCs and hung it off a Unibus machine using (not suprisingly) a DW11-B. I can confirm it works fine. I once worked on something called a 'Gamma 11', which was a medical imaging control system. It consisted, IRIC, of a PDP11/34 CPU with a VS60 board set in the CPU cabinet. That was linked by a Unibus cable to a 5.25" expansion box containing 2 4-slot backplanes. One was the normal Unibus, and contains an RL11 and the Unibus half of a DW11-B. The other was Qbus, it cotnained the other half of th DW11-B and some special interface cards to the imaging camera, etc. Alas I never got to investigate the 'interesting bits. I just had to fix a simple fault on the RL11. I see no reason why it wouldn't work. Certainly the DW11-B supports NPR transfers -- I've run Unibus 11's with RL drives hung off an RLV11 (with a DW11-B linkling them). -tony