Ferrites (or something similar), I should imagine, Quinny. Just another "after thought" by the sound of it. To my mind, anything like that should be placed inside the equipment (box) itself.
Although I must admit that I'm wondering if someone is winding you up, and these "boxes" are actually the dreaded power supply "bricks"!
Now about hair ... well, some of us older guys may well remember a certain RAF biomed tech who
did in fact wear a hairnet whilst sleeping. I only heard about this some years later (that is, after wondering how it was that he had always looked so immaculate)! I can only assume that his girlfriends were
very impressed. And no (in case you're all wondering), it
wasn't JS!
