Ballasts - The insides of a Dec 1961 GE M-250R Silver

File information
Filename:	026~0.JPG
Album name:	Jace the Gull / Ballasts
Keywords:	American_Streetlights
Filesize:	738 KiB
Date added:	Apr 03, 2011
Dimensions:	1603 x 2134 pixels
Displayed:	156 times
Color Mode:	Normal
Color Space:	sRGB
Contrast:	Standard
DateTime Original:	2011:04:03 16:28:34
Exposure Bias:	0 EV
Exposure Mode:	0
Exposure Program:	Program
Exposure Time:	1/8 sec
FNumber:	f/3.3
Flash:	Flash, Auto-Mode
Focal length:	4.1 mm
Focus Mode:	Auto
ISO:	250
Light Source:	Unknown: 4
Make:	Panasonic
Max Aperture:	f/3.3
Model:	DMC-ZS5
URL:	http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=5887
Favorites:	Add to Favorites

Comment 5 to 24 of 24

Page: 1 - 2

mercuryvaporrocks

[Apr 03, 2011 at 10:18 PM]

Nice light Jace.

streetlight98

[Apr 04, 2011 at 10:36 PM]

Big ballast. Shocked

Almost as big as my 400w 120X240v GE ballast from my M-400

joe_347V

[Apr 04, 2011 at 11:36 PM]

Nice light Jace, it's in really good condition too!

GullWhiz

[Apr 05, 2011 at 12:22 AM]

No not really.....the OV-14B I have has an even bigger ballast and its only 175 watt MV....but whole fixture is 40 pounds or a bit more....this GE fixture is only 30 pounds

streetlight98

[Apr 05, 2011 at 09:30 PM]

40 pounds!!! That's quite a bit of weight for a 175 watter!

GullWhiz

[Apr 05, 2011 at 09:33 PM]

Yeah that 40 pound cobrahead I have is from 1957....the very first small sized cobrahead ever made....see it here

streetlight98

[Apr 05, 2011 at 10:00 PM]

Wow! Looks so lightweight.

GullWhiz

[Apr 05, 2011 at 10:05 PM]

Imagin the weight of the OV-25 the first generation and the OV-50 from that time frame Wink

streetlight98

[Apr 05, 2011 at 10:13 PM]

Gosh.

120 pound OV50. Is this thing loud?

GullWhiz

[Apr 05, 2011 at 11:27 PM]

nah, just a bit of buzz...but the OV-14B here is actually very quiet!

gailgrove

[Apr 09, 2011 at 12:58 PM]

I don't think the OV-50 would of weighed 120 pounds...

GullWhiz

[Apr 09, 2011 at 01:40 PM]

Did you know that the earliest OV-50s without the fins we're actually remote ballasted? Very Happy

. Makes me wonder how you could tell if its a OV-50 remote ballast or a newer internally ballasted OV-50!!!

streetlight98

[Apr 10, 2011 at 05:30 PM]

Probably not, I actually didn't think about it that long. westinghouse fixtures tend to be longer and heavier than other company's lights.

NiMo

[May 23, 2011 at 03:24 AM]

Jace, the way you can tell externally ballasted OV50s from later models is the door. Older OV50s were split doors while newer ones were single doors. A little tidbit, the capacitors on the later OV50s were mounted on the door as well.

GullWhiz

[May 23, 2011 at 03:01 PM]

Good Point Jason! Thanks for the info!

streetlight98

[May 23, 2011 at 09:44 PM]

The ones I have seen in a shopping plaza near me has split door OV50s with fins. It was retrofitted to 400w MH.

joe_347V

[Sep 30, 2011 at 02:38 AM]

I wonder if the B2213s weighed more than the other large cobraheads since they're quite long...close to 4' Shocked

gailgrove

[Sep 30, 2011 at 02:43 AM]

I would guess it likely weighed a bit more just from the size.

LilCinnamon

[Nov 02, 2011 at 03:25 AM]

What kind of slipfitter does this have? o.o

joe_347V

[Nov 02, 2011 at 04:01 AM]

Looks pretty tight though.

Comment 5 to 24 of 24

Page: 1 - 2

Gallery of Lights

The insides of a Dec 1961 GE M-250R Silver

See the insides...The ballast is actually a bit older than the whole fixture itself by a few months! Take a look at the design of the ballast! Kinda primitive in a way...Works great! Oh don't forget the great looking orange gasket that was short lived in GE fixtures!