A very special technique that is rarely used for switching applications due to its great disadvantage is this touch sensor for AC Hum detection. A very special technique that is rarely used for ...

I have a ground loop hum in my home stereo, which is very minor but it's a good excuse to upgrade from the Tripp-Lite surge protector I use now. Monster Reference PowerCenter HTS2500. From what I ...

Pedal Juice, Sanyo's latest Eneloop rechargeable battery solution, offers musicians some relief from a gig bag full of 9V batteries. It could also help cut down annoying AC hum that some wall outlet ...