As a kid, saw these (same model?) running in early 60's @ ch 7 Bris when in audience for live show. Was peering at studio monitors that had spectacular camera fixed shots between takes--noise free ultra high resolution emerging from velvet blackness with halo enhancement, the best monochrome you'll ever see. One segment on monitor had Brian Tait ready to do a live cigarette commercial. The way the big Image Orthicon captured the drifting smoke was amazing & unforgetable.
Couldn't see same resolution or blacks at home as our (typically poor performing) TV didn't have DC restoration
