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| Info about this bulb |
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Rating: Unknown Came from: U.S.A. Manufactured: Before 1922 Purchased: March 2003 Price paid: $18.50 plus sh. Bulb rarity: Very rare Best feature: Twin hairpin filaments |
| Carbon Resistance Bulb |
This is a carbon filament resistance bulb. Although it works the same way as a normal lightbulb, it is intended to be a ballast lamp. The 300 on top refers to its resistance. The base of this bulb has the blackest patina I have ever seen!
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