[dorkbotsea-blabber] Metal detector help

[Seth! Leary]

Hi there. I need some help. Clearly I am not a big enough dork to solve this
myself, so I am hoping that someone here will be my salvation. I have (sort
of) designed a tabletop metal detector demostration. The idea is, a person
places an object on the indicated spot, presses a button, and--if the object
is metal--a buzzer sounds and the needle on a meter swings over. I took a
very old metal detector, attached the coil to the bottom of the table and
the other inards are on top, in a nice acrylic box. Alas, it does not work.
 
Is there someone among us that knows a bunch about metal detectors and can
help me build one that DOES work? The downside is, I am on a fairly tight
schedule. The best part is, I can pay you in the local currency (if U.S.
dollars is your local currency).
 
I anxiously await a reply or two. Thank you!
 
- Seth!
 
P.S. Before someone replies with some smart-aleck remarks, let me just say
that (a) the metal detector was tested and, yes, it worked and (b) we made
sure that it really could register a hit through the wooden table. I should
also mention that the failed experiment has been sent away to the Island of
Misfit Toys and we'll be starting from scratch. Which is probably a good
thing.
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