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Russian Plücker tubes set Here's a nice set of Russian Plücker tubes and holder that a colleague gave me a while ago. The discharge tubes are filled with neon, water vapor and hydrogen, and were intended for a didactic use at school to show students the different optical emission spectra of various gas fills. Keywords: Lamps

Russian Plücker tubes set


Here's a nice set of Russian Plücker tubes and holder that a colleague gave me a while ago. The discharge tubes are filled with neon, water vapor and hydrogen, and were intended for a didactic use at school to show students the different optical emission spectra of various gas fills.
Reflector3.jpeg 2020-08-19_Tungsram_HgMIG_2000W21S.jpg DSCF1316.JPG IMG_0776s.jpg IMG_7396s.jpg
File information
Filename:DSCF1316.JPG
Album name:Max / Misc lamps and lighting
Keywords:Lamps
Filesize:818 KiB
Date added:12 Aug 2026
Dimensions:1200 x 923 pixels
Displayed:57 times
DateTime Original:2024:05:09 13:15:02
Exposure Time:1/2000 sec
FNumber:f/4.5
File Source:Digital Still Camera
Flash:No Flash
Focal length:39 mm
ISO:320
Model:X-E4
Software:Digital Camera X-E4 Ver1.12
White Balance:Daylight
URL:https://trad-lighting.net/gallery/displayimage.php?pid=1390
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Comment 1 to 2 of 2
Page: 1

Tuopeek   [Fri 14 Aug 2026 at 20:02]
Nice item complete with its box. I've never seen an educational water vapour discharge tube, they tended to be noble gasses or elemental. I guess having a electrical discharge in a compound complicates what is observed in the emission lines for school pupils, it even gets complicated for hydrogen as, like most gasses, it goes about in molecular pairs. Smile Was there ever a 4th tube in the kit, going by the spaces? I'd guess maybe CO2.
Wonder
Max   [Sat 29 Aug 2026 at 13:01]
I guess the goal was not to go into the fine details of the emitted spectra, but to just show that different gases/vapors result in various light colors having specific optical spectra.

Good catch about the 4th lamp slot, its exact nature is anyone's guess. Personally I'm not sure those Soviet educational boxes even had all the same set of discharge lamps.

Comment 1 to 2 of 2
Page: 1