>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, 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.
But this is just nit-picking -- sorry, George! Everything else George said
sounded right on, and makes me feel better about using my fan after turning
the lamp off! (Which, incidentally, is in the directions for the projector.)
: Jan Steinman <mailto:jans@xxxxxxxxxxx>
: 19280 Rydman Court, West Linn, OR 97068-1331 USA
: +1.503.635.3229
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