6 Nov
2000
6 Nov
'00
10:22 a.m.
Sold a pair of old Jensen speakers to a guy in Korea
the other day and
am shipping them via DHL Worldwide. They have refused to accept the
items until I come up with a "gauss reading" for the magnetic field????
Anyone ever heard of such a thing? I did a fair bit of research and
found their maximum allowable reading is ".00525" but no one at DHL has
a clue what that means. I'm assuming it is a measurement in gauss at
some prescribed distance from the package. On average the strength of
most high powered speaker magnets is in the range of 10,000 to 15,000
gauss,
but that is measured at the voice coil [in the center of the field]. The
field would decrease [as the square or maybe even the cube] of the
distance.
Stumped,
Craig
They must mean the field as measured at the outside of the packing,
otherwise no hard drive could be shipped with super powerfull magnets used
in the head positioners.