help id'ing an old tube

Post by **Conor Whyte** » 25 Jul 2025, 15:49

IMG_20250724_220920.jpg

I happened across this scintllation detector at a ham radio fleemarket. It was orginally from Ukraine ~ 80's vintage perhaps. has anyone seen one of these before? Is it NaI:Tl ?
Was curious about it.

Post by **Madmax** » 27 Jul 2025, 17:05

Yes, it should be NaI 40*40 with FEU93 PMT.
Not so big chance that it's working with good resolution, but you can try.

Post by **Conor Whyte** » 28 Jul 2025, 12:12

I'm asking about the pinout from the tube, not looking for usage in Gamma Spectroscopy as it is, as you say probably not in the best shape. Do you know where I can find a pinout for such a tube?
Looking to do a counting project with it.

Post by **Madmax** » 31 Jul 2025, 14:57

https://istok2.com/data/2900/

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help id'ing an old tube

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