Core of SoundBug speaker. | |||
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Core of SoundBug speaker. This is the heart (not easy to get to!) of a SoundBug brand magnetostrictive alloy speaker. The rod you see sticking out of the copper coil is made of Terfenol alloy, which changes its length when exposed to a magnetic field. Source: Max Whitby of RGB Contributor: Max Whitby of RGB Acquired: 17 April, 2009 Text Updated: 17 April, 2009 Price: Donated Size: 0.5" Purity: <50% | |||
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