Thread: Incandescent lamp resistance (from sed} - incandescent.pdf
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John Fields John Fields is offline
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Default Incandescent lamp resistance (from sed} - incandescent.pdf
On Wed, 23 May 2007 15:48:29 GMT, ehsjr
wrote:

John Fields wrote:

Nice chart - thanks!
How is half brightness determined?

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With a light meter. Read what it says with 120V on the lamp and
then decrease the voltage until it reads half that.


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JF
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