electrical transformers forum

how to eliminate electrical humming in under ground telephone cables due to 1-phase transformers

Mookie , Wednesday, 11th of August 2010 11:37:29 PM

how to eliminate electrical humming in under ground telephone cables due to 
Mookie
1-phase transformers 
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Peaches , Thursday, 12th of August 2010 05:11:00 AM

isolation, and proper shielding of the audio lines  
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