In this first part, we are going to build the plate and the coil. First, you have to look for a non-metallic circular object, I have found a lid for a container that will work well for this function. I have made some holes to fix the coil with nylon ties. Before winding the coil, you have to build a mold for it. I have drawn a 200 mm diameter circumference and divided it into 16 parts. In each of them, I have driven a nail, and around the nails, 30 turns of copper wire with a diameter of 0.6 mm are wound, to achieve an inductance of 0.54 mH. Then the coil is taped and connected to a 2x1 cable, which will be connected to the board that I will build later
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Homemade metal detector very easy PART 1
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