Los Angeles Times

Humph! He’s had it with the humming

The noisy dispute in Cerritos has become a humdinger. John Davis contends that a new electrical transformer behind his home of 33 years produces a constant humming sound that resonates through his ...
Los Angeles Times

Bah, hum! Noisy transformer behind Cerritos man’s house is finally replaced

It may have taken 18 months, but the state Public Utilities Commission has finally pulled the plug on a humming backyard electric transformer that a Cerritos man says kept him awake at night. The ...
TwistedSifter on MSN

What’s That Constant Humming Sound You Hear From Some Types Of Electronics?

The electrical hum isn't from the electricity at all.
Ars Technica

Can someone explain to me how DC on the mains causes transformer hum?

I just got the latest Hifi News magazine and, as usual, the same ridiculously expensive mains cables etc are being pimped. I usually just skim over that crap, after admiring how pretty it is, but this ...