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American type mercury blended lamp

American type mercury blended lamp

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Clear mercury blended lamp

E_56_(3).JPG J_018_a.jpg J_023_DURO_TEST_450W_250V.jpg J_025_AEI_MAT-V_300.jpg

Light Information

Light Information

Manufacturer:DURO-TEST
Lamp
Lamp Type:Fluomeric
Base:E40
Electrical
Wattage:450
Voltage:250

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File information

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Filename:J_023_DURO_TEST_450W_250V.jpg
Album name:Trianero2012 / Mercury lamps
Keywords:Lamps
File Size:259 KB
Date added:Sep 11, 2012
Dimensions:987 x 2050 pixels
Displayed:215 times
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-69551
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rjluna2
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Robert


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Sep 11, 2012 at 05:31 AM Author: rjluna2
I see they were using the stigma part from the incandescent light bulb to hold the filament

I am also sure a member in this site would know more about this specimen

Pretty, please no more Chinese failure.

Trianero2012
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Sep 11, 2012 at 05:42 AM Author: Trianero2012
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Sep 11, 2012 at 08:48 AM Author: Globe Collector
I have a Chinese one, not as nice as this, got in in the market in Nga-Trang.

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

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Rare white reflector


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Sep 11, 2012 at 02:23 PM Author: Silverliner
I have three of these Duro-Test ones (one is marked Luxor). Two are clear just like the above and one is half coated.

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Sep 11, 2012 at 04:41 PM Author: Globe Collector
Those half-coated ones are some of the most "Lush" North American H.I.D. lamps! Saw a big BT-56 mercury one hanging in a shop in Sai-Gon. The only time I have ever seen one "in the flesh".

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

dor123
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Sep 13, 2012 at 04:20 AM Author: dor123
Never seen SBMV with two starting electrodes.
Why the ballasting filaments in american SBMV lamps, seems to be so poorly made (They aren't straight, but crooked).

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

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Sep 13, 2012 at 04:33 AM Author: Globe Collector
The filament is positioned in such a manner s to get its length into the bulb and spread its heat evenly.
I have lots of mercury lamps with two starting electrodes and resistors. I have lamps with two starting electrodes, but only one connected by a resistor. Very high quality lamps, usually Philips made from the mid 1960s, often have two starting electrodes and resistors, counter connected.
The loss in the second resistor decreases the efficacy slightly.

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

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