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Sylvania YELLOW K shape lamps

Sylvania YELLOW K shape lamps

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What a find! 4x of Sylvania K shape (mushroom) Double Plus life lamps that are YELLOW!!!!

Etches are in a worn out state but the clearest one indicates that they don't put the date codes strangely enough!

IMG_6786.JPG IMG_6772.JPG IMG_6769.JPG IMG_2122.JPG

Light Information

Light Information

Manufacturer:Sylvania
Model Reference:Double Plus
Lamp
Lamp Type:Incandescent
Filament/Radiator Type:filament in krypton enviromment
Shape/Finish:K shape/Mushroom
Service Life:2000hrs
Electrical
Wattage:40W
Physical/Production
Factory Location:France

File information

File information

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Filename:IMG_6769.JPG
Album name:Flurofan96 / Incandescent lighting & bulbs
Keywords:Lamps
File Size:278 KB
Date added:Feb 25, 2019
Dimensions:2465 x 1643 pixels
Displayed:60 times
Date Time:2019:02:25 16:22:56
DateTime Original:2019:02:25 16:22:56
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Exposure Time:1/30 sec
FNumber:f 3.5
Flash:No Flash
Focal length:20 mm
ISO:500
Make:Canon
Model:Canon EOS 750D
White Balance:1
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Comments
fluorescent lover 40
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Lights are awesome! :)


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Feb 25, 2019 at 02:07 PM Author: fluorescent lover 40
Nice find mate!

-Date decoder of most US lamps 1960-present.

-Collects all types of lights.

I'll save any vintage lamp... dead or alive! Smiley

Silverliner
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Verd a ray classic.


GoL
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Feb 25, 2019 at 04:04 PM Author: Silverliner
Nice find! The Sylvania lamps made in France had the date code on the stem press, as far as I know.

May all the great lighting technologies have their place in history.

Administrator of Lighting-Gallery.net. Need help? PM me.

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Preserving the Brightest Ideas of Our Age


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Feb 25, 2019 at 05:05 PM Author: Globe Collector
Geez, these ARE unusual!

Are you aware if any other colours exist or only the yellow (made under the "non insect attracting" ticket).

If these are sylvania and the etch has two stars... (sorry I d0sn't look closely, but yes, that's the etch style)...on either side then they are probably from the Rue Berjon plant in Lyon, a ramshackle collection of buildings the filled a whole block on the northern side of the street and turned out some very interesting lamps over its long operational period.

They will be from the mid 1980's.

Dave, if the date code is on the press......what a daft place to put it on a coated lamp!

Pretty good chance this lamp came from the same mold.


THESE had the same etch style and came from the same plant. I have the whole set of these but have not posted them. All used the smaller bulb size except the 93 watter, which was larger.

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

Flurofan96
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Feb 26, 2019 at 08:26 AM Author: Flurofan96
Well this is kind of odd....to insert the date code on the stem press on a coated lamp! There is no clearband for me to peek through and we only know that it is made through the mid 80s

I will give LEDisease a taste of my shoe

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Feb 26, 2019 at 03:19 PM Author: Globe Collector
When these were made, it was "strange times" for Sylvania...Sylvania GTE changed to Sylvania SLI and their portfolio of properties altered.

Some of these type-K's were made in Brazil, as were many of their coloured lamps...somehow this depended upon where the molds were held and saved changing molds when bulb sizes needed changing. Those Hi-Lights, I think the bigger 93 watter came from the Vinheido plant in Sao Paulo, whereas the rest were from the Rue Berjon plant in Lyon.

The historical thread of Sylvania is almost as complicated as that of Thorn and its changes, mergers and divergence into Havell's Sylvania on one side of the pond and Osram Sylvania on the other can get one quite confused!

These were made at a weird juncture in the history of the name and at a tine when country of origin was not marked. In the images I can see the etches look really dodgey...one wipe, and swoosh...cleanskin!

Is there a country of origin marked on these? Because on the Hi-Lights (which have the same etch layout) these is no country of origin.

Seeing inside the Hi-Lights to any press moldings is also really difficult. There is a clear band, but it is narrow and distorting.


Again, do you have any evidence that other colours existed?

I have a red type K made for Tekfen in Turkey by some crowd in China. As far as I know this was the only colour according to their catalogue.

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

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