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From: John Woodgate
Subject: Re: Halogen bulb drive
Date: Thu, 26 Sep 2002 05:18:53 +0100
Organization: JMWA Electronics Consultancy
Reply-To: John Woodgate
NNTP-Posting-Date: Thu, 26 Sep 2002 06:42:29 +0000 (UTC)
X-Newsreader: Turnpike (32) Version 4.01 <5Z8C9wtxbnpWyFnyfFzqmVF739>
I read in sci.electronics.design that N. Thornton
wrote (in ) about
'Halogen bulb drive', on Wed, 25 Sep 2002:
>nospam wrote in message news:firstname.lastname@example.org>...
>> I did quite a lot of research on small halogen lamps some time ago. I came
>> The most significant factor in life (ignoring mechanical vibration and
>> shock) is applied voltage. Life being inversely proportional to 12th power
>> of the ratio of specified and applied voltage.
>Are you sure it's the 12th power? Thats remarkably high. Was your info
>source supported by other sources?
Yes, it's a standard text-book curiosity, there being few physical
phenomena that are so non-linear.
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
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