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