> Unfortunately all my BNC-input monitors are the very old Hitachi
> monitors, the ones that date from the Sun-3 era.  What doc I have
> managed to find (based on their 365-xxxx numbers) implies that they are
> entirely monofrequency.  I suppose I should try them, though.

Heh, did you power them up lately?  Every Hitachi monitor I've ever seen
has long since exploded..

-pk