Nice, traffic light1 I have always suspected that these HO/VHO fluorescent light were indeed sold as U-shaped tube. Some years ago, I salvaged the fallen sign light with only the ballast and the sockets configured for the U-shaped tube here.

They are still made I want to get one, but just think how many were in the twin towers

Oh cool! I didn't know they made U-Tubes in HO.

VHO and HO, I know they had them as U bend forever now but was slow to know they they had them as I / line tubes

You mean linear tubes?

Yes thats the word I have my own names for them

Those HO lamps are designed specifically for sign use. There are even F102/HO linear lamps used for signs.

Yes I know all the different u lamps even f120 u bend. So at some point someone put them in 2 by 2 u bend fixtures.

As weird as it sounds I have always wondered what lamps were in the WTC when 9/11 happened!

Probably some mercs too, WTC was built in the late 60s so I guess there might have been some mercury recessed lights somewhere.

WTC was completed in 1973.

Yes the had MV in the main lobby. What was in the 44 and 77 sky labby? I would think MV too. so wow I would say about 300 MV lamps in the North tower, I don't know the South tower well. I did not study it for 9 years like the North.

They started construction in the late 60s...

Yes late 60s is good you are right.

Such a shame that the towers were destroyed. Now we live in a paranoid world when we should just be killing them all off instead of trying to keep them out of the country. We're too nice to people. And eye for eye doesn't leave the world blind that's whay we have more than one. (well that and depth perception lol)

RIGHT! Now NYC wants the towers rebuilt, New Orleans wants them too. I am making a model of them photos are on flickr it has bigger outer columns and 2 sets of them. I looked at the North tower for 9 years and they are nice buildings they are the only buildings that could stay up for 2h after it was hit by a 767 air craft.
This is god to watch on youtube "Inside The Twin Towers" It is very good

Wow. I watched it. How idiotic of them not to evacuate the building! "When in doubt, GET OUT!" That's my motto.

SCC ( 2 girls in North tower smoke came in their office) saved more lives than I can think of. They are the real star Christine (on the 106 north tower with windows around the world) was a hero was well she did her best.

I couldn't imagine being in that building when that happened. that guy that survived when the plane crashed right into his office: WOW! And the fireman and his uniw and the woman who survived when the north tower collapsed. very very lucky! Unfortunatley, not everyone was as lucky. The building engineer was a real trooper too. He stayed in that building that he had designed and helped many people escape. I was tearing up as i watched the whole thing.

i came across a lamp like this, F36T12/HO/U in a barnes and noble sign the other store had 32W circline instead
the U lamp was in series with 3 F36T12/HO linears