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#31
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On 10/2/2012 17:21, jim stone wrote:
Not being able to find a small internet radio to buy we liked, we got mobile phone with which we link with wi-fi to a modem router, and use it as an internet radio. Keeping the phoned plugged into its charger all the time, we are using it to play *all-day* background classical music through an amplifier and speakers. Since the phone has no 'moving parts' unlike a computer, we are wondering if this continuous playing all day of the phone is going to shorten its working life ? Does the mobile have a subscription plan; i.e. periodic payments? |
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#32
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On Wed, 3 Oct 2012 07:01:25 +0100, "MikeS"
wrote: "Tom Biasi" wrote in message ... On 10/2/2012 5:21 PM, jim stone wrote: Not being able to find a small internet radio to buy we liked, we got mobile phone with which we link with wi-fi to a modem router, and use it as an internet radio. Keeping the phoned plugged into its charger all the time, we are using it to play *all-day* background classical music through an amplifier and speakers. Since the phone has no 'moving parts' unlike a computer, we are wondering if this continuous playing all day of the phone is going to shorten its working life ? Using anything shortens it's working life. Seems to go against the whole ethos of exercising. Never get out of bed and live forever ... Blanket absolute statements are often wrong... You have to match the logic to the device. Light bulbs? Off makes them last longest. A car engine? You better exercise that sucker once in awhile if it sits outside fully fueled. Many electronic devices can tolerate 24/7 with few failures. Disk drives? Now that's a question. The early ones (sealed ones - not the very early ones where the platters were removable 12" disks) seemed to do better if they ran 'til they croaked. The early drum recorders seemed to last forever as long as they didn't stop running. (the heads rode on a wave of silicon oil and never touched the belts unless they stopped) |
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#33
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tony sayer wrote:
In article , William Sommerwerck scribeth thus "Tom Biasi" wrote in message ... On 10/2/2012 5:21 PM, jim stone wrote: Not being able to find a small internet radio to buy we liked, we got a mobile phone with which we link with WiFi to a modem router, and use it as an internet radio. Keeping the phoned plugged into its charger all the time, we are using it to play *all-day* background classical music through an amplifier and speakers. Since the phone has no "moving parts" unlike a computer, we are wondering if this continuous playing all day of the phone is going to shorten its working life ? Using anything shortens its working life. Not so. There aren't any obvious failure mechanisms in solid-state devices (other than dopant migration in high-power output transistors). Yes interesting that especially in high power RF transistors, 'tho I believe in such cases its paralled emitter connections that start going open circuit... It's also true that most mechanical devices "like" moderate use. Letting anything mechanical "sit" most of the time will probably cause it fail sooner than if receives regular use. It's now possible to build computers without moving parts (other than the optical drives). My new computer has a solid-state "hard disk", and you wouldn't believe how fast it boots up, or how fast programs start to run. Indeed they do just got one, not in this machine but very fast indeed. They still it seems fail though... Boot times are largely a function of what gets loaded prior to showing a "desktop". Different OS'es have different boot times. Check out Haiku OS. I boot to a "desktop" in under a minute. -- http://www.privacySOS.org | www.extinctioncrisis.org www.snuhwolf.9f.com|www.savewolves.org _____ ____ ____ __ /\_/\ __ _ ______ _____ / __/ |/ / / / / // // . . \\ \ |\ | / __ \ \ \ __\ _\ \/ / /_/ / _ / \ / \ \| \| \ \_\ \ \__\ _\ /___/_/|_/\____/_//_/ \[email protected]_/ \__|\__|\____/\____\_\ |
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#34
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William Sommerwerck wrote:
Using anything shortens its working life. I can vouch for the remark made but I can give you more details too: I use smartphones, tablets and laptops to listen to internet radio all the time and I've only had one device that suffered because of that. What happened to that particular device is the WiFi quit working and it doesn't even work after a factory reset. Who knows why the WiFi quit? The radio could have failed simply because the chip went bad. HP has had problems with the radios in some of its notebooks. This might be where a Knoppix disk can help arbitrate between a software/configuration problem and a hardware failure. Any time I have something fail, I do the "Remove Device"/"Add Device" dance, then update drivers. If that fails, out comes the Knoppix disk. If it *still* fails, it's most likely hardware. I've been lucky so far and nothing has needed a lot of scrounging for Linux device drivers. -- Les Cargill |
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#35
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On 10/3/2012 1:01 AM, MikeS wrote:
"Tom Biasi" wrote in message ... On 10/2/2012 5:21 PM, jim stone wrote: Not being able to find a small internet radio to buy we liked, we got mobile phone with which we link with wi-fi to a modem router, and use it as an internet radio. Keeping the phoned plugged into its charger all the time, we are using it to play *all-day* background classical music through an amplifier and speakers. Since the phone has no 'moving parts' unlike a computer, we are wondering if this continuous playing all day of the phone is going to shorten its working life ? Using anything shortens it's working life. Seems to go against the whole ethos of exercising. Never get out of bed and live forever ... Be sure to use all ten fingers on the tv remote, make them last longer. |
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#36
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"jim stone" wrote in message ... Not being able to find a small internet radio to buy we liked, we got mobile phone with which we link with wi-fi to a modem router, and use it as an internet radio. Keeping the phoned plugged into its charger all the time, we are using it to play *all-day* background classical music through an amplifier and speakers. Since the phone has no 'moving parts' unlike a computer, we are wondering if this continuous playing all day of the phone is going to shorten its working life ? The bits that will fail [first] in a mobile phone are the battery and display. You can replace the battery and switch off the display. I have two 40+ year old solid state radios that still work. |
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#37
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On Wed, 03 Oct 2012 14:48:40 -0500, amdx wrote:
On 10/3/2012 1:01 AM, MikeS wrote: "Tom Biasi" wrote in message ... On 10/2/2012 5:21 PM, jim stone wrote: Not being able to find a small internet radio to buy we liked, we got mobile phone with which we link with wi-fi to a modem router, and use it as an internet radio. Keeping the phoned plugged into its charger all the time, we are using it to play *all-day* background classical music through an amplifier and speakers. Since the phone has no 'moving parts' unlike a computer, we are wondering if this continuous playing all day of the phone is going to shorten its working life ? Using anything shortens it's working life. Seems to go against the whole ethos of exercising. Never get out of bed and live forever ... Be sure to use all ten fingers on the tv remote, make them last longer. The TV, the remote, or the fingers? |
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#38
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On Wed, 3 Oct 2012 21:52:53 +0100, "R. Mark Clayton"
wrote: "jim stone" wrote in message ... Not being able to find a small internet radio to buy we liked, we got mobile phone with which we link with wi-fi to a modem router, and use it as an internet radio. Keeping the phoned plugged into its charger all the time, we are using it to play *all-day* background classical music through an amplifier and speakers. Since the phone has no 'moving parts' unlike a computer, we are wondering if this continuous playing all day of the phone is going to shorten its working life ? The bits that will fail [first] in a mobile phone are the battery and display. You can replace the battery and switch off the display. Except phones with hardwired batteries. I have two 40+ year old solid state radios that still work. My 39YO HP45 still works but the power switch is too flaky to be usable. |
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#39
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On Wed, 03 Oct 2012 10:32:57 -0400, Phil Hobbs
wrote: I don't know of any data that supports this common idea, but I'd be interested in reading about it if anybody's actually done the experiment carefully. It's an accelerated life test. The deration curve of the incandescent light bulb is well known and assumed to be (Vapplied/Vdesign)^-12 to ^-16 * Life at design voltage http://www.welchallyn.com/documents/Lighting/OEM_Halogen_Lighting/MC3544HPX_Catalog_2_11_09.pdf See Fig 5 on Pg 5 for the graph. Nobody wants to wait 1000 hours for a bulb to blow. So, they increase the applied voltage, which dramatically decreases the lifetime down to reasonable test times. Using a rack of bulbs, they obtain an average (or median) lifetime at the higher voltage. Then, they work backwards on the curve to estimate what it would be at the design voltage. When I was specifying lamps for a direction finder for the USCG, I had to deal with minimum lifetime specs. I asked the vendor (Dialight) how they tested their T-1 3/4 bulbs and was told that they did an accelerated lifetime test on a few bulbs from each lot to insure adequate lifetime along with the usual sampled 1.5% AQL failure test. Electromigration is a smaller effect in an AC bulb, since the leading order effect cancels. Yep. As I understand it (possible wrong), AC filaments break in the middle, mostly from vibration flexing. I suspect that the notion that cycling is hard on bulbs comes from the way that the bulb often fails at turn-on, when the thinnest hot spot vapourizes before the rest of the filament has a chance to come up to temperature and reduce the inrush current. Yep. See my comments on the relatively high failure rate on the 40watt theater marquee lamps due to cycling. The same lamps in the lobby and foyer were not cycled and seemed to last forever. The tungsten in the lamp is run within a few hundred kelvins of its melting point, so it's always in the fully annealed state, which ought to mean that there are no metal fatigue mechanisms operating, just material migration due to sublimation. Yep, but different failure mode. When the extremely thin layer of tungsten plating evaporates, the light becomes dimmer. Below some brightness level, it is considered to have failed. However, most such tungsten coated filaments fail due to corrosion of the base steel alloy wire which is exposed to the internal gases inside the bulb after the tungsten evaporates. The gases (mostly nitrogen and some argon) are inert, but there's a little water vapor outgassing from heating the glass envelope, which eventually corrodes the filament. Other failure modes are hot spots and notches caused by manufacturing variations and tungsten evaporation. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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#40
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On 2012-10-02, jim stone wrote:
Not being able to find a small internet radio to buy we liked, we got mobile phone with which we link with wi-fi to a modem router, and use it as an internet radio. Keeping the phoned plugged into its charger all the time, we are using it to play *all-day* background classical music through an amplifier and speakers. Since the phone has no 'moving parts' unlike a computer, we are wondering if this continuous playing all day of the phone is going to shorten its working life ? It may be bad for the battery -- ⚂⚃ 100% natural --- news://freenews.netfront.net/ - complaints: --- |
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