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make your own metal decteting machine

Read on the steps to make your own fantastic metal detector. Step 1: Turn your radio on and set it to the highest AM band and ensure that you did not select any station. There should be no audio being received from radio stations.If everything is right, you should hear static only. Step 2: After that, you will set the sensor part of the metal detector. Once your radio is set, place the back of your calculator

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