actually, the sound tv set's usually make, is about 16khz, and normal, young ears can hear to about 20khz. i'm almost 40 and i can still hear it. it's usually caused by the high voltage transformer and or deflection yoke, which run at that frequency, and it is very, very annoying with some sets. sometimes there's a loose winding, some sets let the sound out better, and likely some flybacks and deflection yokes just magnetorestrict more than others (i.e. constrict under the magnetic field they generate, and spring as it decreases). in my experience, 2 sets or monitors of the same model may show one that's loud and one that isn't, but it doesn't seem to make them particularly more likely to fail. now, i have heard an ultrasonic humidifier, but it may have been exciting a subharmonic that was audible, it's hard to say, high frequencies do some odd things.
Alan Kim wrote: > > Robyn Lyons wrote: > > > You are one of those people who can hear frequencies higher than a > > normal person. What I hate is when someone has left a TV turned on but > > there is not picture so you can just 'feel' the stupid thing on. Drives > > me insane! I don't doubt that you hear the whine, it should not be > > there though, otherwise, both me and my dog should be driven insane. ------- -- "Promise me, promise me this day, promise me now..." he asked. "Even as they strike you down, you will remember: humanity is not our enemy. The only thing worthy of you is compassion...Hatred will never let you face the beast in human beings. One day, when you face the beast alone, with your courage intact, your eyes kind...out of your smile will bloom a flower. and...on the long, rough road, the sun and the moon will continue to shine." Thich Nhat Hanh, Buddhist monk -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/supermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
