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| Info about this bulb |
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Rating: 112v, 25w Came from: U.S.A. Manufactured: 1909-1922 (est. 1915) Purchased: August 2002 Price paid: $26 plus sh. Estimated value: -About $25 in good working condition Bulb rarity: rare Best feature: True red glass |
| Tipped Ruby Red Edison Mazda Lightbulb |
This is a Ruby red, cage filament, Edison Mazda lightbulb. This is the tipped variant, and it is quite scarce. The little glass tip on top tells us that this bulb was made before 1922. Bulbs like these were commonly used for theater stage illumination. The filament that this bulb uses is a "cage filament" made of tungsten. It is supported by a glass rod which has several hooks on it. The usual amount of hooks is 10, but they can be many more, especially in the case of 220 volt bulbs. People often find this type of filament hard to describe. It is simply a very long continuous filament, not multiple filaments as most people usually say by mistake.
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