[wrs]

Well, it says right there, the 2741 replaced Teletypes. It wasn't a Teletype. (Not sure I'd call this a "major gaffe", though!)

[refset]

Not a capital-T Teletype but it seems like it was widely used as a teleprinter and had similar mechanical constraints/requirements. The post does touch on this language ambiguity:

> Teletypes (technically "teleprinters" - "teletype" was just the most popular brand name)