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Really dumb question of the day...


 

Last night I got to thinking about 3 way light bulbs - don't ask me
why, I donno.

Anyway, I believe inside it is 3 filements - one for each brightness,
okay, I understand that. One the base of the bulb is two contacts like
a normal bulb. The switch has four positions - off, on1, on 2, and on
3. I have not looked inside a 3 switch/socket, but there can't be too
much in there as there isn't much room.

How does it work?

Like I said, dumb question of the day :-(

Chris


Stefan Trethan
 

Inside are two filaments of differnt wattage.
Each contact goes to one filament, the reurn is the base.

low wattage filament - low
high wattage filament - medium
both filaments - high.

that's what i think. Such bulbs are not sold here.

ST

On Wed, 26 Apr 2006 15:41:07 +0200, lcdpublishing <lcdpublishing@...> wrote:

Last night I got to thinking about 3 way light bulbs - don't ask me

why, I donno.


Anyway, I believe inside it is 3 filements - one for each brightness,

okay, I understand that. One the base of the bulb is two contacts like

a normal bulb. The switch has four positions - off, on1, on 2, and on

3. I have not looked inside a 3 switch/socket, but there can't be too

much in there as there isn't much room.


How does it work?


Like I said, dumb question of the day


Chris


Nelson Johnsrud
 

You are correct (as usual). That is just the way it works. There are two contacts side-by-side in the center of the bulb socket for one end of each filament, and the threaded outer portion is the common for the other ends of the filaments (this end is the non-switched side, directly connected to the power source). The switch selects first the low wattage filament, then the high wattage filament, then both, then off.

Nels

Stefan Trethan wrote:

Inside are two filaments of differnt wattage.
Each contact goes to one filament, the reurn is the base.

low wattage filament - low
high wattage filament - medium
both filaments - high.

that's what i think. Such bulbs are not sold here.

ST


On Wed, 26 Apr 2006 15:41:07 +0200, lcdpublishing <lcdpublishing@...> wrote:


Last night I got to thinking about 3 way light bulbs - don't ask me

why, I donno.


Roy J. Tellason
 

On Wednesday 26 April 2006 09:41 am, lcdpublishing wrote:
Last night I got to thinking about 3 way light bulbs - don't ask me
why, I donno.

Anyway, I believe inside it is 3 filements - one for each brightness,
No, only 2 filaments, that are both on for the brightest setting.

okay, I understand that. One the base of the bulb is two contacts like
a normal bulb. The switch has four positions - off, on1, on 2, and on
3. I have not looked inside a 3 switch/socket, but there can't be too
much in there as there isn't much room.

How does it work?
The lower-power is turned on first, then the medium power, and both for the
brightest setting.

I haven't had any of these around for a loooong time. I don't like them much.
And you always had one filament burn out before the other, too.

--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin


 

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In a message dated 4/26/2006 8:52:48 A.M. Central Daylight Time, lcdpublishing@... writes:
Anyway, I believe inside it is 3 filements - one for each brightness,
okay, I understand that.? How does it work?<<
NO!? Just two!? One for DIMMEST; the second for BRIGHTER; and BOTH for BRIGHTEST.?
?