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**Dave J.** · 04-06-2013, 12:06 AM

Appears to be an eddy current loss type metal detector. The conductive material to be tested would be placed between the poles of the inductor. The circuit itself is probably adapted from a $20 Radio Shack kit.

--Dave J.

**nelson** · 04-06-2013, 02:55 AM

Yes, to me it looks like another scam
Regards
Nelson

Originally posted by Dave J. View Post

Appears to be an eddy current loss type metal detector. The conductive material to be tested would be placed between the poles of the inductor. The circuit itself is probably adapted from a $20 Radio Shack kit.

--Dave J.

**matrix** · 04-10-2013, 04:05 PM

I think the SUPER CONDUCTIVITY phenomena appears at very low temperature (near the absolute zero) that needs some laboratory devices to produce this temperature, such liquid nitrogen , and ... !!!