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My 1940 GE 400 watt Mazda Medium Pressure MV powered up!!!! Pretty nice eh? It actually seemed dimmer than I thought it would be.....I wonder if the ballast was powering it wrong or not....it also was kinda dimming and brightening too...kinda in a twinkling way too.....(when we closed the garage and turned off other lights)....it was interesting...but it may needed a LOT longer warm up.....We left it there for pretty LONG time....to see if it got brighter....maybe someone can explain this? Keywords: Lit_Lighting

My 1940 GE 400 watt Mazda Medium Pressure MV powered up!!!!

Pretty nice eh?

It actually seemed dimmer than I thought it would be.....I wonder if the ballast was powering it wrong or not....it also was kinda dimming and brightening too...kinda in a twinkling way too.....(when we closed the garage and turned off other lights)....it was interesting...but it may needed a LOT longer warm up.....We left it there for pretty LONG time....to see if it got brighter....maybe someone can explain this?

003~2.JPG totallyleakedlamps.jpg medpressureMVlit.jpg IMG_4406.JPG IMG_4410.JPG
File information
Filename:medpressureMVlit.jpg
Album name:Jace the Gull / HID
Rating (1 votes):55555
Keywords:Lit_Lighting
Filesize:742 KiB
Date added:Sep 10, 2010
Dimensions:2250 x 3000 pixels
Displayed:329 times
Color Space:sRGB
DateTime Original:2010:09:06 09:32:18
Exposure Bias:0 EV
Exposure Program:Program
Exposure Time:1/160 sec
FNumber:f/3.3
Flash:No Flash
Focal length:6.2 mm
ISO:80
Light Source:Unknown: 0
Make:Olympus Imaging Corp.
Max Aperture:f/2.8
Model:FE310,X840,C530
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=3342
Favorites:Add to Favorites

Comment 1 to 12 of 12
Page: 1

Sailormoon_01_uk   [Sep 10, 2010 at 06:31 PM]
It's due to the Age of the Lamp the argon Gas is absorbed by the Glass arctube, to replemish this you have to light the lamp for a Hour yes this will indeed cause Arc Splutter and the light to bright and Dim this is OK as the argon Gas is slowly stablising, also this lamp is Classed as a Medium Pressure Mercury Lamp and would take longer to warm up and stablise than the High Pressure Mercury Lamp

Note how more greenish Blue the light looks compared to a HPMV lamp.

All the Best

Colin
lite_lover   [Sep 10, 2010 at 09:08 PM]
That's a cool lamp! Cool
prawnman88   [Sep 11, 2010 at 02:19 AM]
now jayce i need to get one so i can put it in my form 109 Smile how do u get your hands on one ?
Form109   [Sep 11, 2010 at 03:04 AM]
If im Right....you can Only Opperate a MA Medium Pressure Lamp horizontally with a Deflecting Coil opperating to keep the arc from bowing up and melting the glass.

Rych...does your Form 109 have a Deflecting Coil in it?
prawnman88   [Sep 11, 2010 at 03:12 AM]
no it must be a later model
Tmcdllr   [Sep 11, 2010 at 05:35 AM]
That's cool!
GullWhiz   [Sep 11, 2010 at 01:33 PM]
Form109 is almost right....but a different lamp..... an H-1..you are wrong on a few more things.....those lamps the H-1 and AH-1 only works on Vertical mount WITHOUT the coil.......my AH-1 specifically can only go base up...not base down.....or other ways.....the H-1 goes base up as far as I know.....but the GE Form 109 ALLOWS the H-1 which us SUPPOSED to be vertical mounted be ABLE to be mounted horizontally.....makes sense?
Form109   [Sep 11, 2010 at 07:02 PM]
Yeah it Does,Still Way cool that you got this Lamp! Smile

too bad i got a Phillips Lamp inside my Flector.
DimBulb   [Sep 11, 2010 at 10:51 PM]
My 250w MAs both flickered, flashed and swirled for a while before calming down. I let mine run for about an hour.
streetlight98   [Aug 20, 2011 at 04:00 PM]
wow, this lamp was made the same year my grandpa was born. Cool
rlshieldjr   [Feb 14, 2012 at 05:24 AM]
Will all the new ebay scores look like this? Laughing
GullWhiz   [Feb 14, 2012 at 05:32 AM]
i have 2 now!

Comment 1 to 12 of 12
Page: 1
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