Re: the video here

http://www.youtube.com/watch?v=3D2ODW-ntPHSU

I've tried something based on his schematic

http://4hv.org/e107_files/public/1251129162_89_FT1630_through_hole_wireless=
-schematic.pdf

Works, but I'm wondering about the heat produced, particularly
wrt the health of the FETs (and wastage)

Once the resonant frequency is found, would it be better to
make a proper power driver (sinusoidal or square ?) ?

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