Craig S McCartney wrote:
A bit off topic, but likely interesting to time-nuts:
In the early days of HDTV (late 80s - early 90s) we were at a European
trade show and had to borrow, at the last minute, a large (~40")
CRT-based HD monitor from a Dutch company that was also exhibiting
there. We liked it so much that we purchased it for use at other trade
shows. The very next show was in Sydney, Australia. The monitor would
not converge and had funny rainbow patterns no matter how many times we
degaussed it. Thinking it had been damaged in its half-way around the
world shipment we called in the local representatives of the Dutch
manufacturer and they were as stumped as we were. Finally, after they
talked to engineers at the factory, the explanation was: "Of course,
that is a Northern Hemisphere monitor; the earth's magnetic field is
much different in the Southern Hemisphere. It can't work there.". After
the show we shipped it back to our headquarters in California and, sure
enough, the picture was perfect.
So, we had a HDTV monitor that doubled as a earth hemisphere detector,
using magnetic flux differential. Needless to say, we only used it in
northern hemisphere shows after that.
Did you ever tried to run it upside down?
Cheers,
Magnus
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