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A closer view of my sylvania mercury lamp, and something strange I noticed.

A closer view of my sylvania mercury lamp, and something strange I noticed.

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Out of all five of these that I have, this one is the only one I have cleaned. I ended up polishing the base too, which was a bit overkill, but I couldn’t stand any corrosion scratching the nickel plating inside of the socket. I had heard that Sylvania had problems with mercury dosage back in the day, and they were indeed right. This lamp has slightly too much mercury, so a small blob always remains at the bottom of the arc tube, even after operating for a few hours. This may be because I only operated this lamp a few times however.

Edit: The mercury did finally vaporize fully.

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Light Information

Light Information

Manufacturer:GTE Products Corporation (GTE Sylvania)
Model Reference:H39KB-175
Lamp
Lamp Type:Mercury Vapor
Filament/Radiator Type:Arc Tube
Base:E39 Mogul
Shape/Finish:BT-28 Clear
Service Life:24,000+ Hours
Electrical
Wattage:175 watts
Voltage:130 volts
Current:1.5 amps
Optical
Lumen Output:7,800 lm
Color Temperature:5900K
Color Rendering Index:22 CRI
Physical/Production
Fabrication Date:1985
Application/Use:street, security, and factory lighting

File information

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Album name:Mr. Orthosilicate / Mercury Vapor Lamps
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Date added:Aug 16, 2019
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Date Time:2019:08:16 20:19:02
DateTime Original:2019:08:16 20:19:02
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