OT
On Tue, 22 Jun 1999, Jan Steinman wrote:
>>From: ClassicVW@xxxxxxx
>>
>>... The major difference between a regular
>>bulb and a halogen, is the halogen burns at a higher temperature (which is
>>possible due to the filament being tungsten)...
>
>I don't think this is quite right. All bulb filaments are tungsten, but in
>a normal, evacuated bulb,
usually filled with an inert gas, Argon.
the tungsten boils away at relatively low
>temperatures. Adding pressurized halide gas causes tungsten to stay in
>place (actually, I think it causes tungsten gas to re-plate back onto the
>filiment), thus allowing it to operate at higher temperatures.
Yup. Replates back. Higher temp=higher efficiency, among other things.
/Acer "cheeky whippersnapper" Victoria
--
"Like a cat / Dragged in from the rain / Who goes straight back out / To
do it all over again / I'll be back for more / ...." --Depeche Mode
http://student.ucr.edu/~siddim01/ <--don't visit just yet!
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|