OOPS: I was quite clearly trying to answer Larrys question about the 
difference between the 1-hz L4-C and the HS-10, and writing email under the
influence of a fever from the flu. I currently have 7 HS-10-1s in my lab,
and a file cabinet top covered with L4-Cs in various states of repair,
most sitting on the bottom stop with sagged suspensions or with more serious
problems, like lightning damage.. The factory calibration data on the 
HS-10-1 indicate masses from about 980 to 1010 grams, which is a variant
of the tolerance of the wire size for the 4000 ohm coil.

Sorry for any confusion.

Regards,
Sean-THomas

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