sodium-vapour lamp: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Add new Web site: Edison Tech Center - Sodium Lamp. | Jul 28, 2017 | ||
| Photo of high-pressure sodium-vapour lamp bulb added. | Mar 26, 2010 | ||
| Detail added on differences between high-pressure and low-pressure sodium-vapour lamps. | Mar 26, 2010 | ||
| Article added to new online database. | Jul 20, 1998 |
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