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STR#_4509.txt
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1999-10-21
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346b
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A wave whose amplitude at any given instant can be represented by a point on a wheel rotating at a uniform speed
A wave that produces a phase angle tangent to the unit circle
A wave with a straight line rise time faster than the fall time (or vice versa)
A wave that alternates between two values and spends an equal time at each level
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