We have received some initial reports regarding Apple's US $ 19.95 power supply replacement program intended to reduce excessive noise generated by Power Mac G4 MDD models. Mike Pickens says the ...

I tried the solution mentioned here, and it only helped slightly. These speakers sound great, but the hum gets annoying to the point of me leaving the speakers off during normal operation. They hum, ...

Noise is a constant problem in power-supply design. While there are FCC limits on the electromagnetic interference (EMI) radiating out into the air as well as the conducted noise that your design ...

I'm trying to figure out a way to deal with a ground loop problem I have at home, this is 60hz mains hum that comes out of speakers, even when nothing is connected to the device besides power cable. I ...