Extra rare soviet LPS lamp DNaO-85

Lamp is hot

File information
Filename:	IMG_20190427_121912.jpg
Album name:	SilverRay / Low pressure sodium lamps
Manufacturer:	MELZ
Type/Model:	DNaO-85 (?)
Wattage:	85 (?)
Date manufactured:	1938
Filesize:	335 KiB
Date added:	20 Apr, 2022
Dimensions:	1633 x 2001 pixels
Displayed:	25 times
URL:	http://80.229.24.59:9232/gallery/displayimage.php?pid=17982
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Comment 1 to 3 of 3

Page: 1

AngryHorse

[21 Apr, 2022 at 07:30 AM]

Nice

, I suppose with that shape tube it allows for universal running?

SilverRay

[22 Apr, 2022 at 04:07 PM]

I have no information but I don't sure. I think that burning position is classical -- from vertical (base up) to horizontal.

dor123

[03 Apr, 2024 at 08:49 AM]

The arctube design looks very similar to some Megamen CFLs (Two U tubes with an under U bend connecting them). I expected that the burning position is the same base-up to horizontal.
But the efficiency would suffer, as one of the tubes absorbs the light of the other tube, due to sodium self-absorption..

Comment 1 to 3 of 3

Page: 1