Author |
Message |
Guest |
Posted: Mon Jun 23, 2008 5:17 pm Post subject: |
|
why don't you look at www.electronicsrobotics.com as it has the best known solution[/url] |
|
 |
pearly |
Posted: Mon Jun 23, 2008 8:16 am Post subject: |
|
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... |
|
 |
RODALCO |
Posted: Sat Jun 07, 2008 9:53 pm Post subject: |
|
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. |
|
 |
fa_07 |
Posted: Sat Jun 07, 2008 3:00 pm Post subject: which is the role of the vacuum in an incandescent lamp |
|
which is the role of the vacuum in an incandescent lamp? |
|
 |