We've got a series 1 machine as it turns out too
(blue case) - I always
thought it belonged to one of the group, but apparently it is owned by
the museum. I'll have a look-see as to exctly what that one is too (I
know there's no docs or disks with that machine though)
If a 'series 1' is the sort that uses an external terminal, then I have a
fair few manuals, including scheamtics, for it. Let me know if you want
me to look anything up.
-tony