" Less EMF " - EMF Radiation Safety Products & Information :
4-12-1999, Lorenzo wrote:
>I'm looking for a device that can detect a portable recorder
>(in function) at the distance of about 1 or 2 meters.
>This device could work by detecting the following things:
> - the magnet inside the speaker
> - the rotating magnet inside the dc-motor
> - the magnetic fiels generated by the recording/erasing head.