[Milsurplus] Hig frequency power

[William Donzelli]

> I once had a power control unit which said it was designed for 1600 Hz
> and was 3 phase, but I have no idea where it was used.  Always
> wondered about that.

Perhaps a gyrocompass? Sometimes thay use really odd line frequencies
(Armas used 233 Hz, I think some Sperrys 240 Hz). Like most things gyro,
there is probably a perfectly valid reason for using these, known by four
people in the whole world (and only two of them understand why).

William Donzelli
aw288 at osfn.org