electrical box cover metal $0.98 A metal file cabinet requires a few tweaks to be turned into a Faraday cage. These directions on Instructables require just a few common pieces of hardware, some cables, and the cabinet.Keep your keys in a metal box when you're not using them. Metals conduct electricity, so a metal box will absorb any radio waves .
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He has just posted the results of his quick and dirty testing of a Conex box (shipping container) as a Faraday cage. His tests revealed that the Conex box will act as a partial Faraday cage. All who are interested in protecting electronics really owe it to themselves to buy his book about EMP/CME.
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