I remember CRTs being washed out, heavy, power hungry, loud, hot, susceptible to burn-in and magnetic fields… The screen has to have a curve, so over ~16" and you get weird distortions. You needed a real heavy and sturdy desk to keep them from wobbling. Someone is romanticizing an era that no one liked. I remember the LCD adoption being very quick and near universal as far as tech advancements go.
People did care, which is why people who played games competitively continued to use CRT monitors well into the crappy LCD days.
Heck, some people still use CRTs. There’s not too much wrong with them other than being big, heavy, and not being able to display 4k or typically beeing only 4:3.
Idk if it’s just me but I have pretty good hearing, so I can hear the high pitch tone CRTs make and it drives me crazy.
This only happens with TVs or very low quality monitors. The flyback transformer vibrates at a frequency of ~15.7k Hz which is audible to the human ear. However, most PC CRT monitors have a flyback transformer that vibrates at ~32k Hz, which is beyond the human hearing range. So if you are hearing the high frequency noise some CRTs make, it is most likely not coming from a PC monitor.
Its a sound thats a part of the experience, and your brain tunes it out pretty quickly after repeated exposure to it. If the TV is playing sound such as game audio or music it becomes almost undetectable. Unless there is a problem with the flyback transformer circuit, which causes the volume to be higher than its supposed to be.
There is not one crt I ever encountered that I couldn’t hear. So I’m having trouble believing you information.
I could time it out most of the time, but it was always there.
I could hear them too, when I was younger. I lost that frequency range of my hearing in my mid-to-late 20’s, which I’ve read is normal.
Me too. And like the other guy, all of them, unless I’ve only encountered shit CRTs.
I’ve also stopped hearing it in my mid 20s when I’ve no longer seen a CRT monitor anywhere. If I’ve lost that frequency I don’t know.
https://en.m.wikipedia.org/wiki/Flyback_transformer
Under “Operation and Usage”:
In television sets, this high frequency is about 15 kilohertz (15.625 kHz for PAL, 15.734 kHz for NTSC), and vibrations from the transformer core caused by magnetostriction can often be heard as a high-pitched whine. In CRT-based computer displays, the frequency can vary over a wide range, from about 30 kHz to 150 kHz.
If you are hearing the sound, its either a TV or a very low quality monitor. Human hearing in perfect lab conditions can only go up to about 28kHz, and anything higher is not able to be heard by the human ear.
Either that or you’re a mutant with super ears and the US military will definitely be looking for you to experiment on.
I’ll defend this guy: there can easily be a harmonic at half the flyback frequency that is audible. It’s lower amplitude so less loud, but I could believe someone being able to hear that.
Yes, as I previously stated, if there is a problem with the flyback transformer circuit, it is possible that the frequency or volume of the noise it generates can become increased or different.
Though again, PC monitors never made an audible noise unless they were low quality and used the cheaper 15.7kHz transformer in their construction.
Other noises associated with CRTs are the degaussing noise, which only happens once usually after turning on the CRT or after pressing the degauss button, or the sound of old IDE hard disks spinning, which also make a constant high frequency noise.
Not sure you follow: even if the primary frequency is out of range, a harmonic (half the frequency, quarter the frequency, etc) can simultaneously exist with the primary.
