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Steps

Step #1:

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Wireless Power Transfer

The first thing is to make the big coil. You can do this by putting four nails into a board and wrapping the copper wire around them.

Step #2:

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Wireless Power Transfer

Then you have to make the smaller coil. It has to be about half the size of the bigger one. You need to put an LED/bulb and a capacitor on the output. I put 2 because I didn't have one that had the right value. You could also put a bridge rectifier on it to turn the AC into DC.

Step #3:

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Wireless Power Transfer

Connect the power to the big coil and put the small one in the middle and the LED should light up.

Step #4:

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Wireless Power Transfer

I tested different gauge wire and the maximum efficiently I got was 42.2%.


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