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Old 3rd October 2017
  #43
Lives for gear
 
toledo3's Avatar
 

I should have added, when I said there was some science to back it up...afaik the place to put it would be on the power cable, and at that the influence on noise suppression has a limit of a few dBs if that, I believe.

I think it only applies to some borderline cases where differences in ground potential between sockets seem to cause hum...but I don't want to swear to it since I haven't read up on it in so long. May possibly reduce noise or interference in some other cases, since come to think of it, you do see them on video equipment quite often.