On Aug 12, 2007, at 11:40 AM, Robert Rolf wrote:

>> Voicecoils, that's the ticket.
>
> We use one from an ancient disk drive (4" diameter 6" long)
> to pull muscles in a research lab.

Heh.  Sudden vision of an engineer "let's use voice coils from
mainframe disk drives; they're Cheap Off-the-Shelf technology,
and we'll ALWAY be able to pick up as many as we need from the
surplus market because of the way disk technology is improving!"

Oops.

BillW

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