Re: Vintage Radios, TVs etc in films and on TV (not anachronisms)
Dragon's teeth pyramids of electromagnetic absorber are used in RF test rooms. It looks just like acoustic absorber. A single wall might be of use for testing signals from/to directional antennae like dishes and horns.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
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