Step 2Soldering and Coils
Take one of the magnets and bend an outer lead around it, creating a spring or coil-like structure. This will help hold the magnet in place and maintain conductivity. Once you have both ends coiled properly, insert the magnets and make sure they still fit. It is fairly easy to mess this up, so you may have to practice it a little.
You must be VERY careful on this step or you will ruin the magnet. Even relatively short term exposure to high temperatures can cause the magnet to lose its magnetism. Since the resistor lead isn't magnetic, I would suggest using a tiny bit of solder to connect it to the magnet. You want this to be a cold solder joint, not a hot solder joint.
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