[SOLVED] CRT High Pitch Noise

I've looked this up and some CRT monitors, when they emit a high-pitched noise (especially when you bring up an almost completely white screen) indicates something is deteriorating or somewhat detached from the inside of it.

Was going to ask is this an indication that's it's becoming more harmful to human health? I've read CRT monitors and TV's let out some level of radiation. The further back you go in time, the more harmful the CRTs are, but would this high-pitch be an indication that the CRT is possibly more harmful to be around now?

HI MJOLNIR

Without positively knowing for sure the answer to your question: I'm going to say no, the noise is not related.

My personal opinion: DEATH TO CRT
Don't ask questions, just purchase an LCD (preferably an LCD with LED backlight) as soon as you can.

Sometimes CRTs can also make a high pitch noise if they are operating out of spec (refresh rate too high). Although in relation to your question, I don't know if the noise/probelm would be more harmful to human health.

I agree with Clifford and would wholeheartedly suggest going for a quality LCD if you are in a position to.

It is likely the flyback transformer. It is used to control the electron beam in the CRT and operates at about 15.7KHz, which is near the high-end extreme of human hearing - at least for younger humans. It is a sign the monitor is beginning to fail, but there's no way to tell if that will be next month, or 2 or 3 years down the road. In the meantime, it is likely to keep dogs out of the room.

High-end extreme in terms of high pitch, I take it? I mean, it doesn't bother my hearing I guess is what I'm trying to say.

Yeah, I'm replacing this, and giving it away. I'm just concerned for those I'm probably going to give it away to, if you know what I mean. Besides I'm looking to keep this as an antique so I was still just wondering if it's safe to use.

Yes, high frequency is what I should have said.

There's no danger from radiation or anything like that. CRTs emanating harmful death rays is just a myth. The high pitch noise is just an annoyance. The danger of CRTs is flying glass in the event of an implosion. Not likely unless you hit a baseball into it. And there is very high voltage (18,000+ volts) on the anode so I would not be sticking my hand inside the case without unplugging and properly discharging it first. And it would not be a good idea to lick the phosphorous off the inside of the tube. Other than that, besides dropping the heavy things on your toes, CRT monitors are perfectly safe and many still prefer their image quality over LCDs.

Yeah they look awesome and I don't see how LCD's are necessarily better. On big screen LCD TV's sometimes they look blurry. Screw the guy who created the Death to CRT's article lol.

CRTs have several points against them. They weigh a ton. They take up lots of desktop real estate. They give off lots of heat. And they consume lots of power. And large screen CRTs, if you can find them, are very expensive.

It is amazing to me, how many people don't think about energy consumption in this day and age. Think green folks!

Good point because not only do CRTs (and other less efficient devices) consume more power, they tend to generate more heat. That may be fine in the wintertime but in warmer months, that extra heat also puts greater demands on facility cooling.