@wakest From a Minitel-1B that was built for US distribution (it's a little weird). It should be a similar tube/driver to the one in the standard production Minitel-1. Unfortunately both of my Minitels had structural problems (brittle bezels), so I gave up on preservation and am using them for other projects. Here's what it used to look like:
https://www.nycresistor.com/2013/05/24/miniteltumblr-time-tunnel/