On Mon, 1 Aug 2011, B M wrote:
  I removed the Unibus terminator out of the RK05 and
connected the BC11
 cable in it's place.  The cable
 then goes to the TMA-11 controller.  The TMA-11 controller does have a
 terminator as well (ie. it is the
 end of the Unibus). 
Ouch! It's not Unibus going to the RK05! You have to plug the BC11 cable
into the "Unibus out" slot of the RK11 backplane.
  Any ideas on why the RK05 would refuse to spin up when
connected to
 the TMA-11?  I am just looking 
The one is a disk drive, the other a tape controller. How should that
work?
Christian