What's Inside More Than 30 Years Old Calculator
by Testas.T in Circuits > Electronics
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What's Inside More Than 30 Years Old Calculator
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