National Shutdowns have put the lid on most shows.
Welcome to the GemologyOnline.com Forum
A non-profit Forum for the exchange of gemological ideas
It is currently Sat Oct 31, 2020 9:19 pm

All times are UTC - 4 hours




Post new topic Reply to topic  [ 17 posts ]  Go to page Previous  1, 2
Author Message
 Post subject:
PostPosted: Mon Jul 09, 2007 12:55 am 
Offline
Gold Member
User avatar

Joined: Mon Apr 16, 2007 12:05 am
Posts: 1472
G4Lab wrote:
Your black housing was manufactured undoubtedly by the George Gates company of Long Island New York. They went under probably in the late eighties. If you open the housing you will find a clear unsilvered thermos housing to keep the sodium vaporised. and a big clunky ballast that wil outlast us all (that was made by GE) inside the wrinkle painted housing.
Hook it up to your OO spectrometer and see what you get.


Heh, its like you can see my lamp housing! That ballast is truly the definition of clunky... a big ol' cube in black wrinkle paint. I always hold my breath when I flip it on, since its electrical cord doesn't have a three-prong ground.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mon Jul 09, 2007 2:02 am 
Offline
Platinum Member
User avatar

Joined: Tue Jan 02, 2007 8:20 pm
Posts: 2658
Brian you dont need to hold your breath unless the cord is shorted. That transformer will be quietly humming its little tune along while WE are all DEcomposing in the ground. The box was made by George Gates (who did know what they were doing too) but the ballast was built by a GE transformer division. I happen to have a copy of the GE print of it. (of the sodium one not the Mercury. But I have had a few of those Mercury ones open (they used to be used in fluorometers back when I was a labrat. Same exact thing you have except buried inside an instrument with a welded steel frame. All made in Long Island (the instrument was a Farrand Optical filter fluorometer. Suddenly you couldnt buy the replacement bulbs anymore. Save the cuvettes and the filters , pillage it for saveworthy parts like the PMT and the beautifully made in USA rest of it went right into the dumpster. Bout 1979 )

I have a fleet of them.(the sodium lamps)

And yeh I like three prong plugs (you could install one in five minutes or let one of your student slaves do it.) but they are only necessary if you think you are going to have some leakage. That transformer aint gonna leak or short. I promise you.


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 17 posts ]  Go to page Previous  1, 2

All times are UTC - 4 hours


Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Gemology Style ported to phpBB3 by Christian Bullock