House wiring? (slightly off-topic)

[harry]

The idea of the halogen bulb is to have metal that is normally
sputtered off the hot filiment "not" just condense on the
glass envelope... but be redeposited on the filiment. This
replaces the metal lost, so the bulb does not darken and filiment
life is extended.

Of course each atom does not return to the exact place it left...
so eventually the filiment weakens and burns out.

Bulbe run below a critical temperature will not have the Halogen
cycle active... OTOH they may be cool enough to avoid major
metal loss.

I run my Halogen on an autotransformer... dropping the line to about 95V.
I don't need a 300W lamp in a 10'x10' room do I ???
Bulb life is excellent !

H^)  harry

KA4HJH wrote:

> >> >This proves true in the lab, you can quickly burn
> >> >out a bulb buy lowering the AC voltage.
> >>
> >> I'd love to see how your lab is wired. This is the exact opposite of the
> >> behavior that I have observed with electrical lamps.
> >
> >Perhaps a halogen bulb? I think these have shorter life when voltage is
> >too low.
>
> Many halogen lamps have dimmers. Are there different kinds of halogen bulbs?
>
> --
> Terry Bowman, KA4HJH
> "The Mac Doctor"