File:60Hz hum square.ogg
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60Hz_hum_square.ogg (file size: 43 KB, MIME type: application/ogg)
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Date/Time | Dimensions | User | Comment | |
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current | 12:02, 10 August 2009 | (43 KB) | wikimediacommons>BPK | {{Information |Description={{en|1=Hum of an 60Hz electrical power system}} |Source=Own work by uploader |Author=BPK |Date= |Permission= |other_versions= }} Category:Electricity |
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