0:04
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Small dc motor, brush noise, spindle 7
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0:03
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Small dc motor, brush noise, spindle 2
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0:08
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Motor pressed against metal plate 9
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0:04
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Motor pressed against metal plate, Contact Mic 5
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0:02
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Small dc motor, brush noise, spindle 10
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0:01
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Motor, single short burst
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0:06
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Small dc motor, brush noise, spindle, Contact Mic 16
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0:10
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Series, drill motor. Varying amounts of pressure applied to the surface
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0:02
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Motor pressed against metal plate 19
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0:05
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Motor, quick up and slow down
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