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The Challenge: Make a radio from a saucepan

Making the Radio: The Coil

Construct the radio on a flat, wooden base, measuring about 30cm x 30cm (12 in. x 12 in.), to which is fixed a coil of about 80 to 100 turns of approx. 22 swg uninsulated wire, wound around and along a 30cm (12 in.) length of broom handle. It's important that the turns on the coil don't touch. Attach the wires at each end of the coil to two connectors: A (antenna) and E (earth).