Using vintage computers in the classroom

Hello cctech community, I am a computer science professor and an avid collector and restorer of old computers, which I routinely use in my classes. (I am also a long-time lurker on cctech, but haven't posted much yet, I'm afraid.) I am interested in chatting with other professors and teachers who use working demonstrations of vintage technology in their classes. I am aware of many cases where professors have taught courses on computer history, used pictures and simulations of vintage computers, or took students on field trips to computer museums. However, I am particularly interested in examples where professors bring actual working vintage equipment into the classroom (like a pdp-11 or a teletype machine) and tried to teach their students to operate it. Has anybody on this list tried it or know of people who do it?