Axiom Home Page Forums General Discussion Stereo Replacing household receptacle by hospital grade.

here's my experience with hospital grade receptacles (mind you, i don't know what's behind them - wiring, etc...).

I worked (will work again) for a company that sells EEG (electroencephalograph) equipment. That measures the electrical activity in your brain.

If you plugged the machine into anything but a hospital grade receptacle (especially a power bar), you would see 60hz interference in the EEG signal. when plugged into a hospital grade receptacle, that went away.

my assumption, though, is that tv's and receivers and cd players, etc, have built in filters to block out this noise, otherwise you'd hear or see a constant 60hz buzz.