Re: Using mobile phone as an internet radio

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#97

From: JoRob64
Date: Tue, 02 Oct 2012 23:46

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"Phil Allison" <phil_a@tpg.com.au> wrote in message 
news:ad1bkkF7pm9U1@mid.individual.net...
>
> "Graham."
>
>>
>> An incandescent light bulb is a good example, If it lasts 1000 hours
>> when run continuously, its life will be considerably shorter if run
>> (say) 4 hours a day and the time it is on added up.
>
>
> ** Where ever did you get that nonsense from ??
>
>     Some web forum ?

I believe turning the bulbs on and off can induce thermal shock which causes 
premature failure.

http://en.wikipedia.org/wiki/Thermal_shock

See also: http://en.wikipedia.org/wiki/Thermionic_valves

"The common wisdom was that valves�which, like light bulbs, contained a hot 
glowing filament�could never be used satisfactorily in large numbers, for 
they were unreliable, and in a large installation too many would fail in too 
short a time".[13] Tommy Flowers, who later designed Colossus, "discovered 
that, so long as valves were switched on and left on, they could operate 
reliably for very long periods, especially if their 'heaters' were run on a 
reduced current".

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From: "JoRob64" <john_riggs@hotmailREMOVETHIS.co.uk>
Newsgroups: uk.tech.digital-tv,24hoursupport.helpdesk,uk.telecom.mobile,sci.electronics.basics,sci.electronics.repair
Subject: Re: Using mobile phone as an internet radio
Date: Wed, 3 Oct 2012 00:46:40 +0100
Organization: A noiseless patient Spider
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