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Westinghouse 400w Mercury Vapor /W (White) at start-up
The etch is a little sloppy on this NOS lamp, but the date code appears to be X9. The first flashes were pink before turning a dull yellowish color, then blue-white as it warmed up. My spectro-scope shows interesting red/orange blend at full run-up. Pretty cool!
Keywords: Lamps

Westinghouse 400w Mercury Vapor /W (White) at start-up

The etch is a little sloppy on this NOS lamp, but the date code appears to be X9. The first flashes were pink before turning a dull yellowish color, then blue-white as it warmed up. My spectro-scope shows interesting red/orange blend at full run-up. Pretty cool!

001_1.JPG IMG_5009_2.JPG IMG_5003_2.JPG 004_1.JPG 008_1.JPG
File information
Filename:IMG_5003_2.JPG
Album name:don / HID
Keywords:Lamps
Filesize:69 KiB
Date added:Jul 06, 2011
Dimensions:1200 x 900 pixels
Displayed:160 times
Color Space:sRGB
DateTime Original:2011:07:06 00:08:43
Exposure Bias:0 EV
Exposure Mode:0
Exposure Time:1/80 sec
FNumber:f/4
Flash:No Flash
Focal length:12.4 mm
Make:Canon
Model:Canon PowerShot S2 IS
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=7245
Favorites:Add to Favorites

Comment 1 to 6 of 6
Page: 1

streetlight98   [Jul 06, 2011 at 03:39 PM]
Nice find! I've always had my eye out for a Westinghouse Lifeguard lamp, but haven't had luck. That lamp will likely out live you and I.
GullWhiz   [Jul 06, 2011 at 04:32 PM]
Nice find Don! I myself have found a very nice 400 watt /DX cleartop Sylvania which is a NOS or slightly used....and I also revived a dead 400 watt GE Bonusline Cleartop that has a /C phosphor dating to I believe 1962
don   [Jul 06, 2011 at 05:10 PM]
Cool Jace...any cleartop lamp is ALWAYS cool, especially an old cleartop Bonusline. Rare. I bought this lamp off of ebay the other day. The seller had about four of these listed as /C...but to my surprise, I ended up with a /W!
Silverliner14B   [Jul 06, 2011 at 05:51 PM]
Is that the seller in MA? I bought one off him, and mine turns out to be a /C. Very nice lamp indeed. X9 is December 1969. Mine is from March 1971.
GullWhiz   [Jul 06, 2011 at 06:03 PM]
i have a NOS Ken-Rad /W 250 watt MV lamps...yes nifty stuff! When mine starts up it has a bit of orangish hue...put it under a black light...you'll see a faint orange glow buddy!
Silverliner14B   [Jul 06, 2011 at 06:30 PM]
I have a Ken-Rad 100w /W yes it is a nice lamp. But my favorite /W is the Radiant 250w.

Comment 1 to 6 of 6
Page: 1