TU-81+?

"Jay West" <jwest at classiccmp.org> wrote: IIRC the TU-80 is mostly a Keystone II (92181), the TU-81+ is mostly (but more than) a Keystone III (92185). I think there were variant model numbers for top-of-rack mounting (like the versions DEC sold) vs the ones that went on a front of a rack (often seen in Sun and countless other systems). I never could tell if the DEC-badged versions had idential firmware (they often tweaked things) but I never noticed any differences. DEC TU-80's and TU-81's are usually configured to not run the blower all the time, while most of the Keystones I used that didn't come through DEC did run the blower all the time. I think this is actually menu-configurable from SETUP but maybe it's really a firmware difference (too many years!). Some of the built-in diagnostics are the same. What's wrong with the bitsavers manuals for the TU81? /pdf/dec/magtape/tu81/* Tim.