Re: Orange sodium lamps « Reply #1 on: May 26, 2022, 02:28:52 PM » Author: Rommie
I've seen the 45W SOI/H that James has on Lamptech, but that was definitely intended as a darkroom safelight, and also Max's one, but I've not come across a SOX version so far. Pity the paint is flaking off, or I'd be interested.
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Ria (aka Rommie) in Aberdeen
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	Re: Orange sodium lamps « Reply #6 on: July 09, 2022, 01:31:41 PM » Author: BT25
Very unique lamp...now I've got something else to find... Hmmm...I thought all SO, SOX, and SON were orange!
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Vintage HID lamp and luminaire collector.

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	Re: Orange sodium lamps « Reply #8 on: July 09, 2022, 01:37:43 PM » Author: Rommie
And here was me thinking they were yellow  Anyway, whatever colour they are, there are slight lines elsewhere in the spectrum that can fog photographic materials, so the paint was added to filter those out, in a similar way to the amber (or is it yellow..?!) glass on our SO/H lamp
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Ria (aka Rommie) in Aberdeen
Administrator, UK and European time zones. Any questions or problems, please feel free to get in touch

"There is no shame in not knowing; the shame lies in not finding out." (Russian proverb)

	Re: Orange sodium lamps « Reply #10 on: July 16, 2022, 01:05:07 PM » Author: Lampwizard
Talking about the perception of the color of a SOX lamp: when I'm standing in a room brightly lit only by a SOX lamp (narrow pupils) then I perceive the color as a harsh yellow light with a hint of orange. However, when I'm driving on a SOX lit road when it is dark (wider pupils) then the color seems to be softer and more orange-ish than yellow. It seems as if spectral sensitivity of the eye is changing with lower illumination levels...
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Philips colour 27: best fluorescent tube colour.

	Re: Orange sodium lamps « Reply #12 on: July 22, 2022, 04:28:33 AM » Author: 108CAM
I originally thought that maybe it's a production sample for some kind of colour corrected LPS lamp with improved colour rendering but the TV mast seems more likely as I read the replies.
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Fluro starter chimes combined with a 50hz ballast hum and blinking tubes is music to my ears.

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	Re: Orange sodium lamps « Reply #13 on: July 22, 2022, 05:32:17 AM » Author: Rommie
I'm pretty sure it's a darkroom safelight, the 45W SOI/H ones I've seen were certainly made for that purpose
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Ria (aka Rommie) in Aberdeen
Administrator, UK and European time zones. Any questions or problems, please feel free to get in touch

"There is no shame in not knowing; the shame lies in not finding out." (Russian proverb)

	Re: Orange sodium lamps « Reply #14 on: November 16, 2022, 01:07:07 PM » Author: Mandolin Girl
Here is what one of those looks like in much better condition.
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There are two kinds of light  -  the glow that illuminates, and the glare that obscures.
James Thurber (1894 - 1961)