I never hear these high pithch sounds from CRTs, but then my hearing sucks since birth.

In the US, I believe that component in CRTs is called a "horizontal oscillator" instead of a "flyback transformer" (but could be that they are distinct yet related things). I've always been easily able to hear those, but am not usually bothered by them anymore since CRTs are fairly rare at this point. But this video proves that my 36 year old ears can still pick it up.

I feel like my hearing is bad -- I always want TVs louder than other people so I can make out what is being said, and in normal conversation it always seems like people are mumbling if there is any background noise at all. And I'm one of those annoying loud-talking Americans, especially if I'm talking on the phone (fortunately I don't get/answer many phone calls when I'm in public). But my hearing range pitch-wise seems to be exceptionally high, and not diminishing much with age (yet).

There's a fun easter egg for people like me at the end of that video. He put pulses of that CRT horizontal oscillator pitch where you can see the "Things You Might Know" text on the red background. I recognized it as Morse code, but couldn't decipher it even though I have an Amateur Radio license (I don't do code). In the comments at YT, people are claiming that the code translates to "never gonna give you up" -- so I guess he's Rickrolling people who both A) still have young enough ears to hear that 15kHz range *and* B) are old school enough to know / recognize Morse code. That's a pretty small target audience for an easter egg!

Live long enough and you don't have to hear one of the most annoying sounds. CRTs might have more or less gone the way of the dodo, but coil whine can strike at ANY TIME!. If you can't hear it take it as a blessing cos irony is a thing and so is tinnitus.

Sad upvote

Wow, heard the pulse at the end and actually feel like I have a second life for the first time. Time to butter them ear drums with some panteraaaaa