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  #23   Report Post  
Old April 3rd 06, 10:47 PM posted to rec.radio.shortwave
 
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Default Your longest-lasting SW receiver?

I use G.E.Reveal 60 watt light bulbs and they average about two and a
half weeks, (I never turn off my kitchen and bathroom lights,,, wasting
money?) before they burn out,once in a while,one of them will last about
a week longer.I once bought a flourescent light bulb about fifteen years
ago at a W.T.Grant store that was going out of business,that lightbulb
lasted over thirteen years before it finally burned out,but I still
prefer to use incadescent old style light bulbs.
cuhulin

  #24   Report Post  
Old April 3rd 06, 11:05 PM posted to rec.radio.shortwave
Caveat Lector
 
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Default Oldest working light bulb (Attn Cuhulin)

Since 1901 !!!!!
URL:
http://www.energyquest.ca.gov/time_m...lightbulb.html

Better still -- check up on the old bulb -- live video -- URL:
http://www.centennialbulb.org/photos.htm

--
CL -- I doubt, therefore I might be !


wrote in message
...
I use G.E.Reveal 60 watt light bulbs and they average about two and a
half weeks, (I never turn off my kitchen and bathroom lights,,, wasting
money?) before they burn out,once in a while,one of them will last about
a week longer.I once bought a flourescent light bulb about fifteen years
ago at a W.T.Grant store that was going out of business,that lightbulb
lasted over thirteen years before it finally burned out,but I still
prefer to use incadescent old style light bulbs.
cuhulin



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Old April 4th 06, 12:30 AM posted to rec.radio.shortwave
David
 
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Default Oldest working light bulb (Attn Cuhulin)

On Mon, 3 Apr 2006 15:05:21 -0700, "Caveat Lector"
wrote:

Since 1901 !!!!!
URL:
http://www.energyquest.ca.gov/time_m...lightbulb.html

Better still -- check up on the old bulb -- live video -- URL:
http://www.centennialbulb.org/photos.htm



Any bulb will burn for decades if the voltage is low enough.

  #27   Report Post  
Old April 4th 06, 01:26 AM posted to rec.radio.shortwave
HFguy
 
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Default Oldest working light bulb (Attn Cuhulin)

David wrote:
On Mon, 3 Apr 2006 15:05:21 -0700, "Caveat Lector"
wrote:


Since 1901 !!!!!
URL:
http://www.energyquest.ca.gov/time_m...lightbulb.html

Better still -- check up on the old bulb -- live video -- URL:
http://www.centennialbulb.org/photos.htm




Any bulb will burn for decades if the voltage is low enough.


Also the fact that it's been on continuously. Incandescent light bulbs
seldom burn out while they are on, unless dropped or hit. Failures are
caused by the current surge when it's turned on. However they must have
had power failures during the many years the bulb has been there. I
wonder how they protect it from surges when the power comes back on.
  #28   Report Post  
Old April 4th 06, 02:04 AM posted to rec.radio.shortwave
David
 
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Default Oldest working light bulb (Attn Cuhulin)

On Tue, 04 Apr 2006 00:26:27 GMT, HFguy wrote:

David wrote:
On Mon, 3 Apr 2006 15:05:21 -0700, "Caveat Lector"
wrote:


Since 1901 !!!!!
URL:
http://www.energyquest.ca.gov/time_m...lightbulb.html

Better still -- check up on the old bulb -- live video -- URL:
http://www.centennialbulb.org/photos.htm




Any bulb will burn for decades if the voltage is low enough.


Also the fact that it's been on continuously. Incandescent light bulbs
seldom burn out while they are on, unless dropped or hit. Failures are
caused by the current surge when it's turned on. However they must have
had power failures during the many years the bulb has been there. I
wonder how they protect it from surges when the power comes back on.


The filament has high resistance. The current never gets high enough
to stress it. I'm surprised it survives earthquakes.

  #29   Report Post  
Old April 4th 06, 02:42 AM posted to rec.radio.shortwave
 
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Default Oldest working light bulb (Attn Cuhulin)

Put a turned on flouresceant light bulb by your radio and,or your
computer and see what happens.

Mississippi produces more electricity than we use in this state and last
year there was talk about a new nuke plant in this State.Have y'all ever
heard of power outages (other than power outages caused by stormy
weather) in Mississippi before? This isn't California or New York City
here.

A few years ago,Duke Energy (or whatever the name of that Duke company
is called?) installed a new steam electricity generating plant somewhere
in the Jackson area.

I dont mind spending more money for old style light bulbs.Those are the
kinds of light bulbs I grew up with and I intend to use them for as long
as I can.
cuhulin

  #30   Report Post  
Old April 5th 06, 01:28 AM posted to rec.radio.shortwave
w_tom
 
Posts: n/a
Default Oldest working light bulb (Attn Cuhulin)

HFguy wrote:
David wrote:
Any bulb will burn for decades if the voltage is low enough.


Also the fact that it's been on continuously. Incandescent light bulbs
seldom burn out while they are on, unless dropped or hit. Failures are
caused by the current surge when it's turned on. ...


Every car failed around 200,000 miles. But only failed when it was
started. Therefore starting is the only reason why cars fail. HFguy
uses same logic to 'prove' power cycling damages incandescent bulbs.
He hopes you will believe sound byte reasoning rather than read many
paragraphs of reality.

As taught in Junior High School science, first we learn underlying
principles before we can obtain a fact. Observation alone even proved
spontaneous reproduction.

There is no major shock to incandescent bulbs during power on. As
well documented in so many light bulb industry publications, light
bulbs are damaged by hours of operation - and as David so accurately
noted - excessive voltage. Unlike HFguy, the industry even provides
numbers for what causes light bulb failure. HFguy provides no numbers
because he is promoting subjective speculation as facts.

For example, a voltage increase causes a decrease in bulb life
expectancy exponentially to a power of 13. Raising the 120 volts to
127 volts will cause a light bulb to fail twice as fast. These are
industry numbers found in the same publications that list what causes
light bulb failure. Power cycling is not listed in what causes
incandescent bulb failure - in publications that use science rather
than personal speculation.

Once a light bulb filament is severely damaged (by hours of operation
or excessive voltage), then even a so gentle power on may cause
filament failure. Look at any light bulb that failed during power on.
Before it failed - whether during power on or in constant operation -
black residue from the filament is already apparent inside the glass.
The filament is down to its last ten hour - like the car with over
200,000 miles. Hours of operation cause a filament to vaporize; those
black deposits.

HFguy makes claims by violating what was taught back in Junior High
school. Without first learning underlying principles of how a light
bulb fails, instead, he has proclaimed based only upon observation and
wild speculation. He ignores junior high school science to promote
speculation as if it were fact. Such reasoning also proved Saddam had
weapons of mass destruction.

Incandescent bulb life expectancy is determined by hours of operation
and electrical voltage. Exponentially increase light bulb life
expectancy by minor voltage reductions.

If HFguy is so confident of his proclaimations, then he can cite an
incandescent light bulb manufacturer publication. He cannot. He
speculations are classic junk science - not found where reality is
published.

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