The Oldest continuously burning bulbs « on: June 29, 2006, 09:24:10 PM » Author: TudorWhiz
I thought you all might be interested to read this! http://www.roadsideamerica.com/set/lightbulbs.html Jace
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	Re: The Oldest continuously burning bulbs « Reply #1 on: July 05, 2006, 06:47:42 PM » Author: Silverliner
I have seen this 105 year old Shelby bulb at the Livermore fire station in person ;-)
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	Re: The Oldest continuously burning bulbs « Reply #3 on: October 11, 2006, 12:01:52 PM » Author: J-Frog
That's near me!  About 50mi away...
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	Re: The Oldest continuously burning bulbs « Reply #4 on: July 23, 2008, 07:23:30 PM » Author: GE M-400A1
Those bulbs are old!
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	Re: The Oldest continuously burning bulbs « Reply #6 on: March 05, 2009, 05:03:04 PM » Author: Medved
Today, such lamp would be scrapped by decent manufacturer as defective - because it gave much less light then designed for... Good "750 hour" lamp will not last more then 1500 hours - otherwise it mean the filament is underdriven and the efficacy too low. That's law of physics. The perfect quality lamps are those, when from larger batch all fail very short just after their rated lifetime - it mean, they are run so hot to give as much as possible light, then their (for given efficacy/temperature) hypothetical (assuming ideal manufacturing process) and rated life do not differ. That mean, then their real manufacturing do not differ from the ideal one.
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	Re: The Oldest continuously burning bulbs « Reply #8 on: October 17, 2022, 04:44:00 PM » Author: Rommie
Quote from: Silverliner on July 05, 2006, 06:47:42 PM I have seen this 105 year old Shelby bulb at the Livermore fire station in person ;-) Hoping to get there maybe next year, I was unaware of its existence the last time I was in California  We do hope it's still working when we can make it over
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