After all, couldn't a light bulb be called a "monode"...
Well, this one is at the centenarian stage, and still running:
http://www.centennialbulb.org/photos.htm
http://www.centennialbulb.org/images/bulbcam.jpg
I have trouble getting a few months out of today's so called "long-life" lightbulbs... And then there are the catastrophically failing Made in China CCFL bulbs, they really, really suck.... Lousy light color (temperature) and all of that stinkin' RFI I'll use 'em for certain purposes, but not if I actually have to use the sickly putrid light emanating from them
Yeah, I've been hoarding incandescents, especially when good little greenies leave off boxloads of perfectly good unused bulbs at teh dump swap table, or I'll scour rummage / church sales for them. I figure I may actually have enough to last 100+ years, by now - though I doubt that I'll be using them all up, myself