[chasil]

Here are a bunch of URLs that I collected for the VT240.

http://www.bitsavers.org/pdf/dec/terminal/

https://github.com/larsbrinkhoff/terminal-simulator/issues/1

https://www.mail-archive.com/[e-mail]/msg09086...

https://forums.bannister.org/ubbthreads.php?ubb=showflat&Num...

https://simh.trailing-edge.narkive.com/qgzCvrl8/dec-vt-emula...

The command that I ended up using was:

  mame -rp . vt240 -window -nothrottle -host null_modem -bitb socket.foo.com:23