Soft flyback inductors?
I walked into a room and I thought I had run into another one of those infernal near-ultrasound noisemakers... But it was a CRT TV.pic.twitter.com/fOJTAIDLdD
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first use of a switching power supply in consumer devices I suspect
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I’m honestly surprised we managed to put up with them as kids
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They were everywhere and you learned to ignore it. It's a lot more noticable now that they've virtually all but disappeared.
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Wao, a working CRT!
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Around here those near ultrasound noisemakers are all over the place and it's awful. I wanna know their actual name. I think it's too scan for weapons/substances. it is especially frustrating when other people don't hear it. I use an android app to prove it to people.
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They are not scanners. The Japanese ones are "Neko no sasakayi" (cat's whisper) and are sold as rodent repellers.
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There was a time when I entered a house and knew if there was a crt on
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I could barely tolerate the noise from cathode ray tubes. Good riddance.
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