Return to the thumbnail page Display/hide file information See previous file See next file

Thorn T12 cathode construction

Thorn T12 cathode construction

Click to view full size image

This came from a Thorn T12 tube that had lost vacuum and was accidentally broken.

LAR_0283.JPG WP_20160528_006.jpg 20191207_120846.jpg 20200315_142736.jpg

Light Information

Light Information

Manufacturer:Thorn
Lamp
Lamp Type:T12 linear fluorescent
Shape/Finish:T12
Service Life:Not any more
Fixture
Location:The Trash!
Electrical
Wattage:65w
Physical/Production
Factory Location:England
Fabrication Date:Late 70s
Application/Use:None any more

File information

File information

Download: Download this File
Filename:20191207_120846.jpg
Album name:LAllenLighting / Miscellaneous
Keywords:Lamps
File Size:555 KB
Date added:Mar 30, 2020
Dimensions:1848 x 2464 pixels
Displayed:49 times
Date Time:2019:12:07 12:08:46
DateTime Original:2019:12:07 12:08:46
Exposure Bias:0 EV
Exposure Time:1/129 sec
FNumber:f 1.9
Flash:No Flash
Focal length:3.7 mm
ISO:64
Make:samsung
Model:SM-J510FN
Software:J510FNXXU2BRE4
White Balance:0
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-175380
Favorites:Add to Favorites
Comments
vytautas_lamps
Newbie
*
Offline

Gender: Male
View Posts
View Gallery

My idol is Mylene Farmer, deal with it.


View Profile Personal Message (Offline)
Apr 08, 2020 at 01:42 PM Author: vytautas_lamps
I have a few Tungsram F40T12 that were made in Great Britain, I feel like, and they look like, they were made by Thorn, cause they have cathode shields, same as in the picture (cause I broke one EOLed to see the filament inside) Nice thicc filament, I love these tubes!

New lighting technologies is a pity fest everywhere you look. From LEDs that last only for two months, to a never-ending global starvation of t8 fluorescent tubes.
We shall reinforce ourselves with good old full mercury t12s and HIDs made to surpass one's life, and give them all the middle finger ;

LAllenLighting
Newbie
*
Offline

Gender: Male
View Posts
View Gallery

Better Dead than LED!


lucas.allen.12979
View Profile Personal Message (Offline)
Apr 08, 2020 at 02:15 PM Author: LAllenLighting
They were probably made in the early 90s when GE acquired both Thorn and Tungsram.
vytautas_lamps
Newbie
*
Offline

Gender: Male
View Posts
View Gallery

My idol is Mylene Farmer, deal with it.


View Profile Personal Message (Offline)
Apr 08, 2020 at 02:27 PM Author: vytautas_lamps

They were probably made in the early 90s when GE acquired both Thorn and Tungsram.

If GE bought both of them, did it acclimated to the already existing machinery and design of lamps already in those factories or did they bring their won new equipment? I'm asking because my Tungsram t12 tubes from Hungary, from 90s to 2010 were all with no cathode guards on 20 and 40 watts, only the 65 watt ones had cathode guards, while Tungsram that were made in Great Britain are using cathode guards in 20 and 40 watt models, so my guess is that when GE bough them, they did not upgrade the machinery and manufacturing designs/standards, they only bought them and that it, right? Cause if they remodeled the machines then the 20 and 40 watt tubes from both Thorn in GB and Tungsram in Hungary would have had cathode guards, not just from GB, right?

New lighting technologies is a pity fest everywhere you look. From LEDs that last only for two months, to a never-ending global starvation of t8 fluorescent tubes.
We shall reinforce ourselves with good old full mercury t12s and HIDs made to surpass one's life, and give them all the middle finger ;

© 2005-2020 Lighting-Gallery.net | Powered by: Coppermine Photo Gallery