Thanks for all the answers and comments.

Would it be reasonable to assume that the MA/U 250W and MA/U 400W lamps with soft glass and hard glass outerbulbs were used for closed and open fixtures respectively ?
I am thinking of water splashes caused by rain. Hard glass, on the other hand, is supposed to be somewhat more resistant (i.e. it doesn't crack immediately) or am I on the wrong track?

From what I've heard the hardglass was for corrosive environments.

@SussexEuroSOX, although I can't guess which country you're from successfully, I will say that chocolate and waffles does sound good very good.
I was actually thinking about reviving this thread, since I just finished consuming sweet potato pie (with whipped cream) not too long ago.
High 7 out of 10 -- will eat again. lol
But... I've gotta watch my diet though, as I am getting back into weightlifting as soon as the new year starts.

I wouldn’t like anyone that I usually talk to to leave, No one would miss me if I leave, I have only be here a couple weeks.

Muscles and Fries! With a dessert of (better than Swiss) Chocolate and waffles! That is my typical meal 😋! Can you guess what country I’m from?

Thank you for your answer.

I see your database have more points then mine. I think mainly because you have alredy thought much more about aspects of People, manufacturing and statistics. I have only limited my database currently to the electrical side of discharge lamps and datecodes. Writing exactly how lamptypes evolved would certainly be nice, but i just don't have the time for that. I have attched what i currently have:

When I am finished with that i have planned to do brands factories and associations...

Not that there are points with no uderpoints, those still need writing and researching.

I used Latex for my database, as it allows to easyly add sections and new information without destroying the formatting. It is however not easily possible for more ethen one person to work on a  document, as most online editors have limited file size, which i alredy surpased. Also linking inbetween sections is fairly easy.

When looking at james bullet points, there are two things missing in my opinion:

Datecodes

Lamp circuit and control gear

The idea of the MS shared file is in my opinion good, as it gives you control who can edit in teh first place. I am happy to see that you put the same weight on reliable sources. It has happened to often that flase information is spread often enough on this cite and even more elsewere (especially facebook). A possibility for control and wedding is for every autor to write in an individual colour. Only when the text have been wedded it can be put in black to mork it as done. Another option would be that someon writes a section which is then reviewed by peers.

For information collection excell is suffiencient, for publishing however i think the microsoft progras are ill suited for publication. I would use a scientific text program like latex for that. I will pop you a message with my Email, as I am very interested in helping with that.


In comparisson i have here what I have prepared:

one in three years. When you buy high quality led, then you invest one and its quiet for quite some time...

Blurryface is a good album but in my opinion, it’s not their best. (Their best is definitely Breach)

At a place I stayed in in Florida, it had used to have one of those illuminated ceilings with a standard 2x4 LED troffer placed where one of the plastic diffusers would be with the original lighting disconnected. I lifted one of the remaining diffusers up to see the original lighting was two F40T12 shoplights (I think Lithonia), one fully intact with a pair of Philips F34/F40T12 Altos and the other missing its reflector and lamps revealing an early 1980s Advance 2x F40T12 magnetic RS ballast, which is probably where the power for the LED troffer is being fed from.

Anywhere from one to three

My house is mostly LED, though I do have a few fluorescents (CFL and linear) and incandescents in use. The fluorescents are in medium/long use and incandescents in short use places.

This topic has been moved to Wanted.

https://www.lighting-gallery.net/index.php?topic=18755.0