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Author Topic: Need help identifying buld  (Read 447 times)

Offline mhonings

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  • Posts: 1
Need help identifying buld
« on: July 26, 2020, 02:48:53 pm »
Found this in an old barn, looking for any information I can get on it. I can't find any marking.

Offline adam2

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Re: Need help identifying buld
« Reply #1 on: July 30, 2020, 09:31:24 am »
Looks like a relatively high power carbon filament bulb. Known as a "concentrating filament" type.
Viewed from the correct angle, the filament appears to occupy a relatively small area.