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fa_07
Joined: 03 May 2008 Posts: 8 Location: Algeria
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Posted: Sat Jun 07, 2008 3:00 pm Post subject: which is the role of the vacuum in an incandescent lamp |
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which is the role of the vacuum in an incandescent lamp? |
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RODALCO
Joined: 28 Oct 2006 Posts: 30 Location: Auckland - New Zealand
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Posted: Sat Jun 07, 2008 9:53 pm Post subject: |
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To avoid the burning up and oxidising of the tungsten filament in air.
Try to break the glass bulb of a 12V car lamp carefully.
Turn it on via a 12V supply, and it lasts about 1/2 second with a puff of smoke from the burning filament. |
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pearly
Joined: 23 Jun 2008 Posts: 1
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Posted: Mon Jun 23, 2008 8:16 am Post subject: |
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RODALCO wrote: |
To avoid the burning up and oxidising of the tungsten filament in air.
Try to break the glass bulb of a 12V car lamp carefully.
Turn it on via a 12V supply, and it lasts about 1/2 second with a puff of smoke from the burning filament. |
Adding to these points the main reason is,
The interior of the lamp having the support wire sub assembly must be sealed from the environment in vacuum-tight manner, cuz hermetically sealing the lamps at places where wires or like metal parts extend from interior of the lamp to the outside has always been a problem in the art
and so support wire sub assemblies for incandescent lamps are usually
kept entirely within vacuum tight... _________________ http://blog.elitesat.com = "HughesNet Blog"
http://blog.getdsltoo.com = "Satellite Internet Blog" |
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Posted: Mon Jun 23, 2008 5:17 pm Post subject: |
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why don't you look at www.electronicsrobotics.com as it has the best known solution[/url] |
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