Re: OT: Centennial Light Bulb Committee?!

Or they put less power through it? Don't know.

Or just that it's old.

My grandmother in her pantry had a light bulb with a point on the end, and when she sold the house, I took the bulb and stored in my bedroom closet.

While I was away at college, my mother sold that house and I totally forgot to tell her to take the lightbulb. In fact it was close enough I could have gone home and gotten it.

That was 1967.

When I was iin Indianapolis in 2008, I went to my old house and I was going to ask them for the bulb. The socket was broken -- no chain -- and it was a shallow closet that didn't need more light than the room provided, and it seemed possible they'd noticed the chain was missing and just ignored the bulb for 40 years. I went twice a day for the 3 days I was there but they were never home and there were no footprints jn the snow.

I went home and tried to figure out their name and number but I couldn't figure it out. Now it's 53 years and the odds I can get that bulb are getting smaller and smaller. Darn.

How old would a bulb with a point on it be, anyhow?

It is an old carbon filament lamp and they were never very bright.

Run continuously the way it has been the carbon very slowly evaporates off the filament and condenses on the glass envelope. It may eventually fail the same way as any other hot filament when a small region becomes a much higher resistance than all the rest and thermal runaway occurs.

However, because these early filaments were quite thick and chunky and run relatively cool for a light bulb it has a very long lifetime so long as you never subject it the the thermal stress of a power on from cold.

Just search for Phoebus Cartel... LOL

Steve

I thought carbon filaments worked the opposite way; where a hotter part of the filament becomes more conductive and so tend to self-regulate.

it is an extremely crappy almost useless light bulb that outputs almost no light

Hence the UPS. And if they had any sense, they'd use a dimmer to restart it when required.

Does "don't know much" mean that there is much he doesn't know, or he doesn't "know lots of things". Is there a difference, who cares, and write a 2000 word essay on it.

You don't know that you were responding to a forger?!!

Yes, should I have prefixed it with something rude?

Of course! ;-)

I expect one of your parrots could have provided a choice phrase!

But still better than a compact fluorescent.

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rhaps it was a one-off fault, or an older design with different filament ma terial?

no light

in what way? other than turning electricity into heat

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, burning

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bright.

Perhaps it was a one-off fault, or an older design with different fila= ment material?

most no light

More light.

Despite me swearing a lot, they never seem to copy it.

Er they still make them, they're called candle bulbs.

But I'm not talking about those. I'm talking about bulbs the same basic shape as the standard lightbulb from the 1950's or earlier to the

It wasnt frosted and iirc the filament went up and down an inch while progressing around almost a full circle.. /\/\/\/\/\

Perhaps they are giving you a message!!!

Look at the point on THIS lamp:-

PS - Bulbs grow in a garden!