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Testing a Cleartop Finally decided to test [url=http://www.galleryoflights.org/mb/gallery/displayimage.php?pos=-10911]this[/url] cleartop on the left. It's shown here firing up on a 175w MH ballast. Keywords: Lit_Lighting

Testing a Cleartop

Finally decided to test this cleartop on the left. It's shown here firing up on a 175w MH ballast.

P2274574M.JPG COL_CIMG_0769.JPG NP4075129_M.JPG P4190499.JPG IMG_0078_COMP.jpg
File information
Filename:NP4075129_M.JPG
Album name:joe_347V / HID Lamps
Keywords:Lit_Lighting
Company and Date Manufactured:GTE Sylvania Canada, ??? (SR 008, Rounded Insulator)
Model Number:H39KC-175/DX
Wattage:175w
Lamp Type:Mercury vapour
Filesize:114 KiB
Date added:Apr 15, 2012
Dimensions:1600 x 1200 pixels
Displayed:269 times
Color Space:sRGB
Contrast:0
DateTime Original:2012:04:07 16:56:27
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/250 sec
FNumber:f/7.2
Flash:No Flash
Focal length:5.5 mm
ISO:100
Light Source:Unknown: 14
Make:Olympus Imaging Corp.
Max Aperture:f/3.5
Model:SP600UZ
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=11407
Favorites:Add to Favorites

Comment 8 to 27 of 27
Page: 1 - 2

joe_347V   [Jun 30, 2013 at 05:01 PM]
It will outlive you since I rarely run it..............
GEsoftwhite100watts   [Jul 01, 2013 at 03:25 AM]
In that case it will outlive both of us combined and then some!
joe_347V   [Jul 01, 2013 at 05:09 AM]
And it was used to begin with too. Razz I have a identical one that I found NOS at a hardware store though.
mercuryvaporrocks   [Jul 01, 2013 at 12:50 PM]
I've seen BT-28 lamps last for at least 20 years or so.
GEsoftwhite100watts   [Jul 01, 2013 at 04:15 PM]
You found another one too? Sweet!
joe_347V   [Jul 01, 2013 at 04:50 PM]
Well, I actually got the NOS one before (in fact it was my 3rd mercury lamp Shocked ) but I've only run it a few times. This one was a Restore find but it's probably only slightly used.
GEsoftwhite100watts   [Jul 01, 2013 at 04:55 PM]
Yeah looks like the arc tube is still pretty clear...
So you bought another merc lamp huh? What size/phosphor?
joe_347V   [Jul 01, 2013 at 05:19 PM]
That would ruin the surprise, you'll have to wait till it arrives. Razz
GEsoftwhite100watts   [Jul 01, 2013 at 05:25 PM]
Ahh okay... Laughing
joe_347V   [Jul 01, 2013 at 10:26 PM]
Yako hha... Rolling Eyes
streetlight98   [Jul 07, 2013 at 07:17 PM]
what's Yako hha?
A_lights   [Jul 07, 2013 at 08:09 PM]
okay backwards Razz
joe_347V   [Jul 07, 2013 at 10:15 PM]
Yep. Razz
streetlight98   [Jul 08, 2013 at 12:24 AM]
Razz ...ereht did uoy tahw ees I yako hO
joe_347V   [Jul 08, 2013 at 03:03 AM]
Cool .52-TB a ekil kool ti sekam elgna aremac eht taht gnitseretni tib a ti dnif I
streetlight98   [Jul 08, 2013 at 03:49 PM]
Razz .rellat gnieb trap degralne eht htiw tsuj ,epahs emas eht hcum ytterp era spmal eht esuaceb s'tahT
joe_347V   [Jul 08, 2013 at 07:43 PM]
.lol 52-TB a ekil skool 65-TB a ekam nac skcirt aremac fo tnuoma on kniht I ,haeY
A_lights   [Jul 08, 2013 at 08:23 PM]
wow you guys are bored lol
streetlight98   [Jul 08, 2013 at 11:38 PM]
The BT-25 and BT-28 are similar to each other and the BT-37 and BT-56 are similar to each other. I wonder why there are two different styles though. Neutral
joe_347V   [Jul 09, 2013 at 03:27 AM]
The BT bulb the 700w lamps use are similar to the BT-37 and the BT-56 too. I think fake Westy also used to have a BT-28 that looked like a shrunken BT-37. Razz Oh and I think the BT-15 bulbs used by halogen lamps look more like mini BT-37 bulbs too.

Not sure why they haave different BT styles though.

Comment 8 to 27 of 27
Page: 1 - 2
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