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Sylvania 400w T16 mercury lamp I believe these were used as a replacement for the 400w medium pressure MV lamps. Odly the case this came in was a mixture of mfg dates from September and December of the same year. Keywords: Lamps

Sylvania 400w T16 mercury lamp

I believe these were used as a replacement for the 400w medium pressure MV lamps. Odly the case this came in was a mixture of mfg dates from September and December of the same year.

0925162046-1.jpg 0925162045-1.jpg 0925162035-1-1.jpg 0923161227-1-1.jpg 0923161225a-1.jpg
File information
Filename:0925162035-1-1.jpg
Album name:gmercury2000 / Personal collection
Keywords:Lamps
Company and Date Manufactured:Sylvania, December 1970
Model Number:H33-1AR
Wattage:400
Lamp Type:Mercury Vapor
Filesize:422 KiB
Date added:Sep 26, 2016
Dimensions:3000 x 1261 pixels
Displayed:151 times
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=21084
Favorites:Add to Favorites

Comment 1 to 6 of 6
Page: 1

merc   [Oct 02, 2016 at 07:06 PM]
Very nice. The arc tube looks a little unusual, though. They're usually made from a clear quartz glass.
gmercury2000   [Oct 02, 2016 at 07:14 PM]
Thanks, this was very common with sylvania MV lamps. They almost look like stretch marks in the quartz. I have some 175 watters with the same look.
merc   [Oct 02, 2016 at 07:18 PM]
We haven't used them here so that's why I found it unusual.
There must be a purpose why they make them this way.
gmercury2000   [Oct 02, 2016 at 07:24 PM]
Ah I gotcha, I'm not actually sure why. Would be interesting to know. Possibly just the manufacturing process used?
Silverliner14B   [Oct 02, 2016 at 07:55 PM]
I have a Sylvania T16 400w merc but it's later, like 1980s vintage.
gmercury2000   [Oct 03, 2016 at 02:41 AM]
If I remember the date codes on these were 117 and 120 so I'm assuming I got the mtg date correct. I know the sylvanias are pretty simple to date.

Comment 1 to 6 of 6
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