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In this video i show what's inside more than 30 years old calculator. This calculator is made in Russia and still works perfectly. It's weird that display tube is individual for each number. If you like this video then Subscribe and support me on patreon https://www.patreon.com/TestasTChannel

<p>Very nice, I love taking apart these devices too!</p>
<p>yes, they are interesting, thanks for your input.</p>

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Bio: I just love electronics! Visit my youtube channel https://www.youtube.com/user/TestasChannel
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