One additional example of the technology of that time. In 1968, I was a computer science student, and found myself called upon to arrange a demonstration of remote computing. The university at that time had no timeshared computing facility, so we used IBM's Call/360 service. The terminal was an IBM 1052 (big clunky printing terminal) with an acoustic coupler. To move this across campus, we arranged for a truck with 2 or 3 people to put the thing on a dolly, put it into the truck, and move it into the student union building. Later that day, the truck, and the helpers, came back and we reversed the process.
I really like my ThinkPad!
The old Teletype in question was a Baudot machine with a 60 mA current loop, rather than ASCII and 20 mA loop for the Model 33.