It's a VAXstation II/RC backplane, it was sold cheaper and crippled by DEC to prevent adding more cards to it. That was my first VAX, and I think I still have mine.
Zane > On Oct 10, 2017, at 6:07 AM, Rod Smallwood via cctalk <cctalk@classiccmp.org> > wrote: > > I have in my possession a back plane from a BA23. > > Somebody has put glue in the last three slots. > > Can anybody explain that? > > Rod > > > -- > Wanted one pdp-8/i rocker switch leaver to copy. >