Hi,
I used one of those both at JPL and Caltech in the
'70s.
Worked quite well.
Yes, from the pictures it looks rather like the Tektronix terminal I used
while at Leicester Polytechnic from 1983 - 1985.
It was located in the miniscule "Graphics Lab" alongside a DEC "GiGi"
(wish
I'd kept mine) and another graphic terminal the model of which I forget now.
Anyone else attend Leicester Poly around that time?
TTFN - Pete.