Is this a serious question?
You can't replace the filament because the glass is blown in place in/on
the base with the filament inside. You therefore can't remove the glass
from the base without fracturing it.
Incandescents cost about a quarter apiece before the environuts got
involved in lighting. No point in trying to repair something that cheap.
On Tuesday, April 26, 2011 at 5:15:20 PM UTC-7, Tegger wrote:
when I was a kid, I remember seeing a TV commercial about laser
beam incandescent lightbulb filament repair, but it was for very
large, very sports stadium bulbs. It may have been a General
Electric commercial, like the kind they air for their jet engines,
MRI machines -- you know, things that average families buy every day.
On Tue, 27 Jan 2015 21:48:26 -0800 (PST), email@example.com
The solution would be to install a very small remote controlled welder
inside each incandescent light bulb. Then when the bulb burns out, the
owner could use his remote, turn on the welder, and weld the filament
back together, without ever having to open the glass enclosure. The
remote would need a joystick control, so the operator could position the
welding rods precisely at the filament break.
On Wed, 28 Jan 2015 02:55:18 -0600, firstname.lastname@example.org wrote:
Robotic welding with a very small incision in the glass. You could blow
a fan over the opening, like they do at supermarket doors, so the vacuum
wouldn't leak out.
Or refill after welding with ArNe, which is a better gas than vacuum gas
Thanks for the warning.
I was in fact going to do that but failed in my attempt
and I was going to try later. My system suffered a multiple chain reaction:
Seems the metal case on my vacuum cleaner shorted to ground
which in turn shorted the fuse out.
Your ladybug comments are right on. We have a couple of my wife's dresser
lamps on the touch sensitive circuits that you can buy at a hardware store.
I put them in her lights for exactly the reason that it was MUCH easier t
o turn on by touching rather than reaching up under the shade and turning t
he switch. Her lights started going on at seemingly random times, we disco
vered it was ladybugs...
That 25,000 hour 100 watt incandescent almost certainly produces less
light than a 750 hour 75 watt once. At national average electricity cost
of over 11 cents per KWH, the 25 watt difference costs over $2 for 750
hours. Superlonglife incandescents don't pay except where there is a
labor cost issue in replacing them.
Meanwhile, I am happy about how long the CFLs in my bathroom are
My experience with a light meter differs from that mentioned in the link
above. I am happy with the light output from my CFLs.
And where do they get this figure of CFLs using 20x their rated power
for a whole second when turned on? That is definitely not true.
- Don Klipstein ( email@example.com)
"And where do they get this figure of CFLs using 20x their rated power for
a whole second when turned on? That is definitely not true."
Yes, CFL's and fluorescents in general have a massive surge consumption whe
n initially turned on. They also contain dangerous chemicals like mercury a
nd cadmium that must be disposed of in a very scientific manner. When using
renewable energy and safe nuclear energy, incandescents are by far the bes
t lightbulb for the environment.
On Tuesday, January 27, 2015 at 1:31:40 PM UTC-7, Frank wrote:
In the 1960s or 1970s, Westinghouse started to sell incandescent
bulbs that were sort of cylindrical rather than spherical, and
they were filled with krypton to make them last longer than more
common argon filled bulbs:
My parents bought tons of them because the light was whiter than that
from other bulbs. I think they still have some, and I do mean the
ones actually made by Westinghouse in the USA, not the bulbs currently
made by a Chinese manufacturer that bought rights to the brand. Those
bulbs did last longer but not nearly as long as fluorescent tubes.
And don't forget to check that the vacuum cylinder from which you refill
the bulbs has the EPA mark showing that the contents are compliant with
the latest regulations. I've read that some unscrupulous vendors are
selling expired vacuum as still usable.
On 01/27/2015 01:38 PM, firstname.lastname@example.org wrote:
the above are reproduction of the so-called Marconi bulbs.
I have them in one of my antique light fixtures.
In the old days when the filament broke ...with the bulb energized one
could tap on it and the loose elements would weld together and the bulb
would work again.
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