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FILE 26/79
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.
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
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Comment 1 to 6 of 6
Page:
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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
Page:
1
There must be a purpose why they make them this way.