M
[email protected]
- Jan 1, 1970
- 0
Hello all!
The BBC has a photo of the lighting inside the Great Westminster Clock
(the clock that contains the bell "Big Ben"). I am curious as to what
type of lamps these are.
http://news.bbc.co.uk/1/shared/spl/hi/pop_ups/07/in_pictures_the_great_westminster_clock/html/8.stm
My first guess is some kind of "compact fluorescent" but with an
external ballast, but I don't really think the visible bulbs have the
usual thing fluorescent tubes folded up inside them. My next guess is
some kind of discharge lamp (mercury vapor or similar) - but those
usually have clear glass. The ballasts are clearly by Philips and seem
to plug into a standard UK socket (240 V, 50 Hz).
Thanks!
Matt Roberds
The BBC has a photo of the lighting inside the Great Westminster Clock
(the clock that contains the bell "Big Ben"). I am curious as to what
type of lamps these are.
http://news.bbc.co.uk/1/shared/spl/hi/pop_ups/07/in_pictures_the_great_westminster_clock/html/8.stm
My first guess is some kind of "compact fluorescent" but with an
external ballast, but I don't really think the visible bulbs have the
usual thing fluorescent tubes folded up inside them. My next guess is
some kind of discharge lamp (mercury vapor or similar) - but those
usually have clear glass. The ballasts are clearly by Philips and seem
to plug into a standard UK socket (240 V, 50 Hz).
Thanks!
Matt Roberds