Now, everyone here, imagine never being able to tune 17000K out (yes I heard the ending) and that's what I've been hearing in both ears for nearly all of my life.  It wasn't until I was 21 that I even thought to ask the question if anyone else heard the ringing -- because I can actually hear very well in spite of it.  So while you may have lost your ability, I hear CRT's humming away every day of every hour of every second of my life, asleep or awake  and luckily, because it's all I've ever known, I'm okay with it.,(reply>), I'm 45, and only  a couple of years ago did my high-frequency hearing degrade with age to the point that I'm no longer bothered by 'mosquito alarms'.  It used to be that I could enter my house through the front door, and instantly tell if someone was watching an old CRT-style TV or had a PC monitor of that type on ANYWHERE IN THE HOUSE (sometimes I could tell from outside if the user had a window open).<br><br>Yeah, it's a sombre reminder of aging (and gradual decrepitude), but hey - at least it's giving you some 'peace and quiet' ;) <br><br>(and no, I can't hear the Morse signal <b>shrug</b> ),(reply>), I hear it too and see flashing lights inside my eyes but only if i pay attention,(reply>), I hear random ringing occasionally, though not very often... Most of the time I ignore it, which is easier to do since it doesn't seem to be coming through my ears. But I'm still young enough that every time a CRT turns on, I do hear it, and I almost always immediately wonder "why does it make that noise?"<br>Of course, now I know.,(reply>), Splitface2811 <br>I hear one, but nothing as bad as a crt,(reply>), Evan J wait. Not everyone hears a high pitched ringing?