On June 30, Chuck McManis wrote:
> Ok, so it is frustrating that DEC had such a great idea starting out with 
> VUPs but then in the later models they dropped VUPs in favor of TPS. It 
> wouldn't be too bad if they had back annotated their data sheets, however...
> 
> I finally scored a 4000/100A which is way cool because it straddles the 
> line between the desktop VAXen and the Q-bus ones. But I was trying to 
> figure out how fast it is and its either slower than the 4000/60 or its 
> faster than the 4000/500 :-)
> 
> Anyone know one way or the other?

  The VUPS specs for these machines are:

    4000/500	 24
    4000/60	 12
    4000/100A	 24

         -Dave McGuire