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Line Materials Unistyle 175 Insides. The ballast looks like it might be a replacement. It appears to be wired for 240v as well. There is a faded, hard to read diagram on the door that mentions 120 and 240v wiring. Keywords: American_Streetlights

Line Materials Unistyle 175

Insides. The ballast looks like it might be a replacement. It appears to be wired for 240v as well. There is a faded, hard to read diagram on the door that mentions 120 and 240v wiring.

SL095.jpg SL094.jpg DSCN0320.JPG DSCN0318.JPG DSCN0316.JPG
File information
Filename:DSCN0320.JPG
Album name:gramirez2012 / My Collection
Keywords:American_Streetlights
Company and Date Manufactured:Line Materials
Model Number:Unistyle 175
Wattage:175
Lamp Type:Mercury Vapor
Filesize:829 KiB
Date added:Aug 24, 2012
Dimensions:2999 x 2249 pixels
Displayed:76 times
Color Space:sRGB
Contrast:0
DateTime Original:2012:08:24 12:43:37
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/30 sec
FNumber:f/3.3
Flash:Compulsory Flash
Focal length:4.5 mm
ISO:200
Light Source:Unknown: 0
Make:Nikon
Max Aperture:f/3.4
Model:COOLPIX S8200
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=12749
Favorites:Add to Favorites

Comment 1 to 11 of 11
Page: 1

joe_347V   [Aug 24, 2012 at 11:06 PM]
Hmm, the cap does look pretty new, is there a date on it?
GullWhiz   [Aug 25, 2012 at 12:36 AM]
Are you sure it's a replacement, because that is the ballast design LM and McGraw actually used!
gramirez2012   [Aug 25, 2012 at 12:53 AM]
It could be original, but it looks much cleaner than the rest of the fixture which is why I thought it might be a replacement.
joe_347V   [Aug 25, 2012 at 02:34 AM]
Actually looking at the cap, it looks like it might be damaged since there's a dent in it.
GullWhiz   [Aug 25, 2012 at 02:36 AM]
Does your ballast have notches on the corners....little grooves, it appears to have that...my LM has this design....also they had General Electric Capactiors....take it out look for numbers in WW-YY or YY-WW format....it's the week # and Year format....my guess this is a 1967 to 1969....

Dent is ok to my knowledge as long it doesn't have a hole...but I recommend when testing it, to use a GFCI outlet....and complete protection......also before screwing in lamp test the OCV voltage.....I'll help you with the ballast wiring when I get home....I'm in NYC as of now....
Antstar85   [Aug 25, 2012 at 02:58 AM]
The Terminal Block is different from mine, also my fixture did not originally come with a cap.

@ Jace, really, I was in NJ earlier this week.
GullWhiz   [Aug 25, 2012 at 03:20 AM]
Yeah, in NYC, Queens....I will be driving through NJ again Sunday....I saw a rainbow in NJ on way to NYC!
gramirez2012   [Aug 25, 2012 at 04:50 PM]
1. Yes the ballast has grooves on the side
2. Date code on GE Cap is 67-4
3. Ballast looks like it could be CWI - I don't see any electrical connection between the two coils.
GullWhiz   [Aug 25, 2012 at 11:02 PM]
Okay it's an original ballast dating to January or Feb 1967! Nice find......I will see how you can connect for 120 volt.........but both coils are isolated.....most older cobraheads were actually CWI instead of CWA!
gramirez2012   [Aug 26, 2012 at 12:01 AM]
Which is better, CWI or CWA? I know CWI is popular in Canada...
joe_347V   [Aug 26, 2012 at 04:20 AM]
Hmm, my Sylvania lamp bulletin says that CWI ballasts have better lamp regulation and have the lamp outputs isolated from the line. The disadvantages of this is that their losses are higher and the ballast costs more.

CWI is indeed popular in up here, our electrical code requires them on voltages with line-line connections such as 208, 240V etc.

Comment 1 to 11 of 11
Page: 1
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