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

Philips TL40W/33 did selfdestruction after 4 hours of usage...

Philips TL40W/33 did selfdestruction after 4 hours of usage...

Click to view full size image

My old TL40W was EOL on a normal way and found this one in sleeve in my collection. So, started up and did have a normal startup like a new tube. After 4 hours heard a little tick and light went of and immediate starter graps in and in first instance both ends were white and restriking and few minutes later orange and 10 mins later the filament burned trough. Took it out of the fixture and had two parts as seen on picture.Probably a small crack in the glass already from beginning?? As seen on picture how precise and straight it broke...

IMG_0716.JPG IMG_0717.JPG IMG_0658.JPG IMG_0388.JPG

Light Information

Light Information

Model Reference:TL-40W/33
Lamp Type:TL-40W/33
Shape/Finish:un finished
Service Life:4 hours
Lumen Output:none

File information

File information

Download: Download this File
Album name:TL buis / New album
File Size:398 KB
Date added:Dec 09, 2018
Dimensions:1848 x 2464 pixels
Displayed:144 times
Date Time:2018:12:09 10:08:20
DateTime Original:2018:12:09 10:08:20
Exposure Bias:0 EV
Exposure Time:1/33 sec
FNumber:f 2.2
Flash:No Flash
Focal length:4.15 mm
Model:iPhone 5s
White Balance:0
Favorites:Add to Favorites
Full Member

Gender: Male
Posts: 134
View Gallery

Wolfram Verdampfungsgefässe

View Profile Personal Message (Offline)
Dec 09, 2018 at 03:58 AM Author: monkeyface
Can happen! My very first F20W/33 Tungsram made tube had a spider like crack on one end and it did survive without any damage for years. The oposite example was a TLD tube I inserted into the fixture in an underpass. The tube started normal but about 15 min. later it extinguished. When opened the fixture one tube’s end was already separated.
Sr. Member

Gender: Male
Posts: 279
View Gallery


View Profile Personal Message (Offline)
Dec 10, 2018 at 06:30 AM Author: rjluna2
Probably poor annealing process during stem assembly

Pretty, please no more Chinese failure.

Hero Member

Gender: Male
Posts: 2463
View Gallery
Other loves are computers, office equipment, A/Cs

View Profile WWW Personal Message (Offline)
Dec 10, 2018 at 06:43 AM Author: dor123
Similar thing occur to me yesterday, when I tried at my new room at the bottom floor of my hostel, to rotate my German Osram FH 21W/840 HE around its axis in my fixture, but only the base came off, but it glowed dimly and stopped working:

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (

I lives in Israel, which is a 230-240V, 50hz country.

Full Member

Gender: Male
Posts: 151
View Gallery

View Profile Personal Message (Offline)
Dec 12, 2018 at 02:50 AM Author: Danny
Oh bugger! Ive not known this to happen to Philips tubes! Seems very common with Atlas & Thorn Tubes though!
Men of God
Jr. Member

Gender: Male
Posts: 86
View Gallery

jiachao.wei.71 chao990613
View Profile Personal Message (Offline)
Dec 13, 2018 at 04:00 AM Author: Men of God


I can't in English, so I in Chinese, please use the translation website to translate my words!


Gender: Male
Posts: 7
View Gallery

My idol is Mylene Farmer, deal with it.

View Profile Personal Message (Offline)
Mar 15, 2019 at 12:17 PM Author: vytautas_lamps
Latest Tungsram made t12 tubes (made in early 2000s before the Tunsgram was bought out by GE) have very fragile or poor annealed ends, because A few days ago I got myself some NOS Tungsram f40t12 CW tubes made in 2006 and all four developed cracks when I cleaned them, tested them, was all happy pants for being NOS and after few hours found all four with endcracks, cathodes separated from tubes. All except one lost vacuum. I installed that one in my bathroom fixture to see how long it will last with the crack going almost all the way across.

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 ;

© 2005-2019 | Powered by: Coppermine Photo Gallery