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Portable Battery-less radio

Step 4The Tuner

The Tuner
Now we remove the insulation from the tips of the wire,
and from the small loops we made every 5 turns (these loops are called 'taps').
these taps allow us to choose radio stations
If you are using enameled wire, you can use sandpaper to remove the insulation.
You can also use a strong paint remover on a small cloth, although this can be messy and smelly.
Don't remove the insulation from the bulk of the coil, just from the wire ends and the small loops.
If you are using vinyl coated wire, the insulation comes off easily with a sharp knife.
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