The VT52 stacks really well, as does the H19. It's also possible to unbolt the keyboard from an H19 and replace the cable with a really long one, which gives you a detached keyboard to set on your lap and a handy shelf for storing it on when you're not using it. I once had a setup with six VT52s (two piles containing three VT52s each). I foolishly built the pile right underneath the thermal cutoff for the computer room power, so I wound up having to move it. Roger Ivie ivie(a)cc.usu.edu