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Sylvania GTE high bay fixture head. Got this at the recycling centre a couple of weeks back. I went just in time to save it, but wasn't fast enough for the reflector assembly, a scrap metal picker took it seconds before me, aargh! He also took a box full of magnetic ballasts, ARGH! But since those came from a school in the area, they were likely 347V, so it's not a big deal... Anyway.. back to the high bay LOL. It originally had a Sola Canada 400W Metal Halide CWI ballast. Since it was 347V, I couldn't even have used it anyways. But the ballast was litterally burnt! The primary coil simply melted, while the secondary hadn't suffered as much damage, but still enough to give the varnish a nice black colour. One side cover has permanent soot marks LOL. The socket still looks good, so I wired directly to 120V so I'll use the fixture with mogul based incandescents. I gutted everything inside the fixture, except the ballast bracket. Strangely the ballast had a replacement cap and the original cap had been left in the fixture, interesting! I figured out the original 19,5uF cap had been replaced by a 24uF cap, which could explain the ballast's catastrophic failure. A higher value cap would technically increase the current inside the ballast, in return the coils run at higher temperature. Speaking of high bays, one high bay has recently been replaced at school, an Appleton BayMaster C model. If it's still in the workshop Monday, I'll ask for it! Keywords: Indoor_Fixtures

Sylvania GTE high bay fixture head.

Got this at the recycling centre a couple of weeks back. I went just in time to save it, but wasn't fast enough for the reflector assembly, a scrap metal picker took it seconds before me, aargh! He also took a box full of magnetic ballasts, ARGH! But since those came from a school in the area, they were likely 347V, so it's not a big deal...

Anyway.. back to the high bay LOL. It originally had a Sola Canada 400W Metal Halide CWI ballast. Since it was 347V, I couldn't even have used it anyways. But the ballast was litterally burnt! The primary coil simply melted, while the secondary hadn't suffered as much damage, but still enough to give the varnish a nice black colour. One side cover has permanent soot marks LOL. The socket still looks good, so I wired directly to 120V so I'll use the fixture with mogul based incandescents.

I gutted everything inside the fixture, except the ballast bracket. Strangely the ballast had a replacement cap and the original cap had been left in the fixture, interesting! I figured out the original 19,5uF cap had been replaced by a 24uF cap, which could explain the ballast's catastrophic failure. A higher value cap would technically increase the current inside the ballast, in return the coils run at higher temperature.

Speaking of high bays, one high bay has recently been replaced at school, an Appleton BayMaster C model. If it's still in the workshop Monday, I'll ask for it!

100_1116.jpg WESTY_H38-4JA-W.JPG HPIM0338.JPG 100_1122.jpg HPIM0297.JPG
File information
Filename:HPIM0338.JPG
Album name:Vince / HID lamps and ballasts
Keywords:Indoor_Fixtures
Company and Date Manufactured:Sylvania GTE | March 1986
Wattage:400W
Lamp Type:Metal Halide
Filesize:943 KiB
Date added:Jun 12, 2011
Dimensions:2592 x 1944 pixels
Displayed:204 times
Color Space:sRGB
Contrast:0
DateTime Original:2011:06:11 19:13:18
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/60 sec
FNumber:f/3.6
Flash:No Flash
Focal length:7.5 mm
ISO:344
Light Source:Unknown: 0
Make:Hewlett-packard
Max Aperture:f/3
Model:HP DVC V5061u
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=6872
Favorites:Add to Favorites

Comment 1 to 7 of 7
Page: 1

gailgrove   [Jun 12, 2011 at 02:51 AM]
Nice, too bad about the reflector though Mad
Form109   [Jun 12, 2011 at 04:26 AM]
Neat Highbay.
TiCoune66   [Jun 14, 2011 at 03:32 PM]
UPDATE 06/14/2011: I got the Appleton high bay today! Although it has a ballast suitable for 347V only. I'll just remove the ballast and use it with mogul-based incandescents.

Pics of the fixture will come tonight!
joe_347V   [Aug 11, 2011 at 11:37 AM]
Cool, too bad the reflector was gone though. I found a pic of one of these.
TiCoune66   [Mar 13, 2012 at 12:34 AM]
UPDATE 03/12/12: While cleaning the place at my mom's work, I found an old high bay fixture head in the attic! It is quite similar to my Sylvania GTE one pictured above, except it is painted pastel green, branded Electrolier, and is 120V! Plus it's a 400W mercury, with a Sylvania BT-37 lamp! My mom found some ballasts as well and will try to get them for me, so I told her where was the high bay head so she could try getting it as well!
gailgrove   [Mar 13, 2012 at 01:03 AM]
Cool! I hope you can get them!
joe_347V   [Mar 13, 2012 at 01:47 AM]
Cool, I hope you can get the ballast too!

Comment 1 to 7 of 7
Page: 1
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