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Philips Alto F40T12 Cool White DX blown Filament

Philips Alto F40T12 Cool White DX blown Filament

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Here is a brand new Philips Alto F40T12 cool white dx with a blown filament. I did this when installing into a T12 fixture yesterday where I removed the late 1970s vintage Sylvania original tubes in a closet at a church building (low life on em!) and swapped them out for the Philips. The fixture had power to it and when inserting the tube into the tombstone/socket, one pin came in contact with the frame of the fixture (metal) while the other pin was in the socket, which caused power to flow to the tube from the 1 pin in the socket which resulted in a short circuit and in turn popped the filament in a nice little bright flash, which also tripped the GFI breaker on the same circuit. I finished this tube off in less than a minute on a T8 instant start ballast. Vacuum loss.

60978290_1989176844543661_6045551929549914112_n.jpg IMG_0053.JPG file[4650].jpg 20180726_083309.jpg

Light Information

Light Information

Manufacturer:Philips
Model Reference:Alto II F40T12
Lamp
Lamp Type:Fluorescent
Filament/Radiator Type:Filament.
Service Life:20,000 hrs
Fixture
Fixture Type:Fluorescent
Ballast Type:Magnetic RS
Socket Type:Standard
Location:church storage room
Electrical
Wattage:40
Voltage:120
Optical
Color Temperature:Cool White DX
Color Rendering Index:4100

File information

File information

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Filename:file[4650].jpg
Album name:RyanF40T12 / RyGuy's Album
Keywords:Lamps
File Size:341 KB
Date added:Aug 22, 2018
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Date Time:2018:08:22 09:58:09
DateTime Original:2018:08:22 09:58:09
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Comments
fluorescent lover 40
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Lights are awesome! :)


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Aug 22, 2018 at 07:06 PM Author: fluorescent lover 40
Wow!

Power provider: Southern California Edison (SCE)

-Date decoder of some US lamps 1960-present.
-Switch and receptacle collector.
-I'll save any vintage lamp! Smiley

streetlight98
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Mike McCann


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Aug 22, 2018 at 07:28 PM Author: streetlight98
Daaamn. That's the only thing I like about the newer roto-lock T8 sockets; it's almost impossible to short the pin to the fixture when relamping live. Otherwise I prefer "real" sockets though lol. I commonly find those roto-lock sockets arc away because people don't twist the lamps all the way in. It's enough to make contact but also enough where the contacts and pin arc and melt the socket. Can happen with regular sockets too but I tend to see it more with the roto-lock sockets, probably because they will hold the lamp in place even if not fully twisted. Normal bi-pin sockets are loose fitting until the lamp is fully twisted in. I feel like Y-slot sockets would be better for T8s than the doughnut sockets because there's almost zero chance of arcing because the tube will drop out of the fixture if not fully inserted.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

xmaslightguy
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^homebuilt fixture


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Aug 22, 2018 at 10:23 PM Author: xmaslightguy
I've done that before.
Its what I consider a design-flaw in some fixtures.


Why would you change out the still-working Sylvania T12's for Philips T12's ?

Colored Fluorescent's such as F40T12 Red or  Green or Blue are awesome...

streetlight98
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Mike McCann


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Aug 23, 2018 at 03:52 AM Author: streetlight98
Maybe so he can keep them? Sounds like something I'd do.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

RyanF40T12
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Aug 23, 2018 at 05:55 PM Author: RyanF40T12
Yup, I wanted to keep the Sylvania's for myself, I'll run em to EoL on my home T12 fixtures around my work shop.

The more you hate the LED movement, the stronger it becomes.

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