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The insides of the Model 25 FCO's. Here are the insides of them, you can see differences here too. Like how the ballasts are wired. Also the capacitor ont he OLDER one is a bit smaller while the newer one is bigger. The ballasts are the same size though. The reflectors are a bit different, the older Model 25 has a better condition reflector, and the paint seems new in there! The sockets are mounted differently. In the newer Model 25 the socket used to be connected to the reflector by a metal plate, but I took that out. And also the newer one has a screw on the socket and the screw screws in the reflector (Under the gasket) to the socket metal. The older one is just the socket is held in by a screw, and the reflector just slides in and then screws. There was no metal plate at all. Just a rubber grey gasket to keep bugs out. (Ugh them bugs.) Not really any other notable differences. Keywords: American_Streetlights

The insides of the Model 25 FCO's.

Here are the insides of them, you can see differences here too. Like how the ballasts are wired.

Also the capacitor ont he OLDER one is a bit smaller while the newer one is bigger.

The ballasts are the same size though.

The reflectors are a bit different, the older Model 25 has a better condition reflector, and the paint seems new in there!

The sockets are mounted differently. In the newer Model 25 the socket used to be connected to the reflector by a metal plate, but I took that out. And also the newer one has a screw on the socket and the screw screws in the reflector (Under the gasket) to the socket metal.

The older one is just the socket is held in by a screw, and the reflector just slides in and then screws. There was no metal plate at all. Just a rubber grey gasket to keep bugs out. (Ugh them bugs.)

Not really any other notable differences.

DSCN5696.jpg DSC03996_1a.jpg DSCN5717.jpg IMG_0508.jpg IMG_0510.jpg
File information
Filename:DSCN5717.jpg
Album name:Lil'Cinnamon / ITT Model 25 FCOs
Keywords:American_Streetlights
Company and Date Manufactured:ITT
Model Number:Model 25 FCO's
Wattage:250 watts
Lamp Type:High Pressure Sodium
Filesize:256 KiB
Date added:Oct 31, 2011
Dimensions:1000 x 1138 pixels
Displayed:110 times
Color Space:sRGB
Contrast:0
DateTime Original:2011:10:31 14:53:13
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/40 sec
FNumber:f/3.3
Flash:Compulsory Flash
Focal length:6.3 mm
ISO:125
Light Source:Unknown: 0
Make:Nikon
Max Aperture:f/3.2
Model:COOLPIX S51
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=9221
Favorites:Add to Favorites

Comment 1 to 6 of 6
Page: 1

GullWhiz   [Oct 31, 2011 at 09:34 PM]
what about the front of the fixture lip? Does both have the groove on the outside front or only one has it?
streetlight98   [Nov 01, 2011 at 12:11 AM]
Hmm. The paint on this is is sloppy on these. I personally don't like the idea of painting the reflectors. It would look better if the finished what they started thoguh. Rolling Eyes
joe_347V   [Nov 01, 2011 at 12:13 AM]
I guess it's a cheap alternative to using coated HPS lamps.
NiMo   [Nov 01, 2011 at 12:37 AM]
@Jace, the one on the left is the early-80s incarnation with the slot on the nose.
GullWhiz   [Nov 01, 2011 at 02:13 AM]
Yes, Jason, but one is a 1982 the other is a 1983...both are the early 80s!
LilCinnamon   [Nov 01, 2011 at 03:11 AM]
What he means is that the newer 1983 one is the early 80's version. The other design was an older design that I guess came out sometime in the late 70's.

Comment 1 to 6 of 6
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