Hi All  Just wonderng Why Clear Mercury Lamps are Not Sold in the UK, OK upto the mid 1980s Osram-GEC, and Thorn Lighting sold the 250w Clear Tubular MB/U...
The most likely reason was popularity or lack of it, causing the clear lamps to be discontinued where they didn't sell well. Clear lamps were made first and...
Hi Lee  Not even the Home Depot Stores in th UK sell Mercurys even some Electrical/Lighting Wholesalers dont stock them only to order in 50, 80,125, 250...
Hi All  I've Recieved the 6 x 100w High Pressure Sodium Lamps today already, Two are GE Lucalox LU100 HPS Lamps and Four are Iwasaki EYE Sunlux LU100 HPS...
Hi, I would just like to add that both Home Depot and Lowes in my area would carry sizes in 80w, 100w (A shape), 175w, 250w, and 400w, with HD sporting the...
Hi all, I agree with Don as they are selling fewer 250 and 400 watt mercs. As was said earlier that is most likely due to the fact that there in not as much of...
Hey guys, I also would like to add that I believe the peak year for mercury vapor lamps was 1977. There are several reasons for this. The first energy crisis...
With the new energy legislation in the USA, mercury lamp ballasts and fixtures are no longer being manufactured. Hardware stores like Home Depot, Lowes, and...
I have run 100 watt mercury lamps from the HX 100 watt MH ballast, minus the ignitor, which if connected may cause flashovers inside the merc lamps. As I...
Forgot to mention that if anyone still has any of the old 50 watt mercury lamps they will operate just fine from an MH 50 watt HX ballast. The 50 watt merc and...
Yes, Lee -- I've successfully converted one of my 50 watt MH ballasts into a dual MV / MH system (ANSI H46 or M110) with the main ignitor lead wired in series...
The 50 watt lamps were never common. I first read about them in the mid-70s and the book said Westinghouse pioneered them for home use in decorative yard...
Hi all, I have a 75 watt MV bulb but no ballast. I have never even seen a ballast for them. I know they exist obviously because the lamps are out there. I...
Many years ago I lit the one I had by connecting in parallel two preheat fluorescent ballasts that were designed to run a single F40T12 or FC32T9. It worked...
Another possible usage of 50w M.V. are lit traffic light sign boxes that are still common in my area. Those are usually suspended between the traffic lights...
Wow, I've never seen suspended lighted signs. Back in the 60s and 70s the uplighted signs on the Interstate were mercury lit very effectively given the strong...
... I would think the 50W merc is now effectively obsolete for new fixtures in most applications because a 23 watt spiral CFL has about the same initial...
Don Klipstein
don@...
Aug 19, 2008 11:38 pm
5991
When I played with the 50 watt mercs back in the late 70s I quickly concluded they were basically worthless. The 75 was a more useful bulb. I did think about...
Out in the area where I live (Salt Lake City, Utah), the 50 watt mercury post lamps are fairly popular in some of the older neighborhoods that don't have...
Around here the big deal in the 60s was installing gas post tops, with a special edition being sold for the centennial year. The post top I put the PL in for...
There were ads in 1960s issues of Electrical World, marketing residential post lights to utilities as good "load builders". For example, I believe Joslyn...
"Load building"--THAT sure worked far beyond their wildest dreams, now didn't it? I remember seeing the ads in magazines featuring good old "Reddy Kilowatt,"...
Some back alleys and small streets in the North End of Boston still have the active gas-lit post top. There is one right behind my brother¹s condo across the...
HI Guys  Yes I do notice that only Iwasaki EYE supply a Clear 50 watt Mercury Lamp see http://www.freewebs.com/lamps019/50w-Mercury-Lamp.jpg (actually they...
Here's a L-M ad from 1965 showing their range of residential post- tops... http://ecc83.hopto.org/site/index.php?sec=lighting&id=shl_scans&image=72 -and this...
Not around here but you might have seen them back then in the fancier suburbs of large cities. This city was only 130,000 in the 60s and had no suburbs. I do...
Wow Two /N style Westy's...not something I have..Although I have one Sylvania /N...but my friend Geoff has two /N Westies with a Safety cap inside the lamp in...
... I have an old No Left Turn sign, it contains four F18T12CW/HO fluorescent tubes powered by a conventional sign ballast. Not saying they never made HID...
Hi James, yes I've seen those fluorescent backlit ones as well. The M.V. ones can many times show the lamp through the diffuser as a point source of the light...
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