And model no 5 ... reaching 100 V at the begining.
Materials used :
1 neodymium sphere 30 mm
3 neodymium sphere 13 mm - used as extra weight for the fidget spinner
0.5 $ - cheap fidget spinner![]()
coil iron-less
9w 230 V led bulb
st
Seedtick (Sep 22, 2017)
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