Our next step in restoring one of our Convergent Technologies MightyFrame Machines is to get one of them to boot to a working operating system. These systems were designed to run CTIX, a Convergent branded version of UNIX, so far as we have learned.
See our search for the CTIX install OS QIC tape.
Meanwhile, for those of you who may be familiar with the AT&T 7300 / 3b1, we welcome your input reviewing our screen shorts of our attempts to boot both of our MightyFrames.