400w Poltava DNaT 400-4
Nice old Soviet 400w SON-T lamp made by Poltava in the former Ukrainian SSR.
Quite interesting in that it has what appears to be a GE Lucalox style external amalgam reservoir.
The arc tube is far less translucent than western lamps too. 

The quality of the outer glass, like the other Soviet lamps I have seems pretty poor tbh, full of visible and tactile imperfections!

400w Poltava DNaT 400-4

Nice old Soviet 400w SON-T lamp made by Poltava in the former Ukrainian SSR.
Quite interesting in that it has what appears to be a GE Lucalox style external amalgam reservoir.
The arc tube is far less translucent than western lamps too.

The quality of the outer glass, like the other Soviet lamps I have seems pretty poor tbh, full of visible and tactile imperfections!

1000082010.jpg 387A8567.jpg 387A2774.JPG 387A2802.JPG 387A2793.JPG
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AngryHorse   [17 Apr, 2026 at 10:26 AM]
Interesting discharge tube Shocked, quite milky!

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