Homemade plasma speaker puts on a light show

July 08th, 2008 | Category: Home Audio Reviews

Cruising around YouTube, I found “Plasma Speaker/Singing Arc,” an intriguing little video of a homemade “speaker” that makes sound by directly ionizing air.

It’s not precisely high-fidelity, but it

shows there are still a few tinkerers out there thinking about something other than the iPod.

The person behind …

Original post by Steve Guttenberg

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