Plasma Speaker

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This is pretty sweet. This guy made a plasma speaker, and played a cd from his walkman. Plasma Speaker / Singing Arc - Early Modulated Prototype geekologie says the technogy has been around since the fifties, and seems to think it is pretty cool. "pitch is altered by the constantly shifting intensity of the plasma arc (the creator puts the frequency response range at 200Hz to 12kHz, and the speaker runs at 50W)." That seems very simple to me, only one variant to adjust to generate the sound. I bet we'll see dual and quad plasma cores on our speakers....that is, if this takes off. Plasma Speaker / Singing Arc - FM Modulated Prototype I definitely want one.

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