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Old 07-23-2007, 09:36 PM   #45
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Join Date: Feb 2006
Location: Missouri
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i suppose i should mention that an "inverter" *could* alter the freq/amplitude of a wave but this is not usually the case. a ballast is specifically designed to stabilize current in a circuit as is needed in lighting applications. the most common of all ballasts is the magnetic species that uses reactive inductance to do this. newer ones (smaller ones like these) are typically electronic and employ resistors, chokes, capacitors and such to do the same thing.
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