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Description
KT90 EI Yugoslavia Platinum Matched Quad dual OO getter NOS NIB 100% 1993 CodesFor sale is one perfectly matched quad of genuine KT90 made by EI Nis tube factory in Yugoslavia in 1993. The same batch and the same etched codes, they come in original EI KT90 boxes. Made back in 1993 in Nis, Serbia, ex Yugoslavia. Genuine EI KT90, with dual OO getter and zirconium getter, welded plates.
For sale is one perfectly matched quad of genuine KT90 made by EI Nis tube factory in Yugoslavia in 1993.
The same batch and the same etched codes, they come in original EI KT90 boxes.
Made back in 1993 in Nis, Serbia, ex Yugoslavia.
Genuine EI KT90, with dual OO getter and zirconium getter, welded plates.
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4.1 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Educational & Interesting Bathroom Reader
Format: Paperback
I bought this for my husband for Christmas given that he loves history. I figured it’d be a hit as a bathroom reader… I was right and it’s become a fixture right next to the toilet paper! He likes that it challenges him to think. Now there’s no need to take his phone into the bathroom!
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Reviewed in the United States on March 25, 2026
★★★★★ 5
Great trivia!
Format: Paperback
This is a great read! Especially for history buffs. Great to get yourself ready for trivia for scholastic bowl! Highly recommend!
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Reviewed in the United States on January 1, 2026
★★★★★ 4
BCE? No, it is BC!
Format: Paperback
I love history; there is a lot in this book I did not know. It is definitely a challenge and a great way to learn. I took off one star (considered taking off two) because the author uses the non-Christian term of BCE. I HATE seeing that instead of what it really is BC - before Christ! I wonder if he is an atheist.
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Reviewed in the United States on December 27, 2025
★★★★★ 5
Useful knowledge
Format: Paperback
Great gift for the guy that thinks he's a know-it-all.
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Reviewed in the United States on January 1, 2026
★★★★★ 5
Very informative
Format: Paperback
Bought this for my son, and he really loves this book. He reads it over frequently. I recommend it if you have a reader that also wants to learn facts about history.
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Reviewed in the United States on May 1, 2026