Tubes are checked prior to shipping. We do not sell used tubes. A lot of Russian tubes are exact analogues of Western and American tubes. Please e-mail your request specifications and we will give you the Russian analogue at a price lower than that of its Western counterpart. See the tube data sheets on this web site to choose your appropriate Russian analogue.
Russian tubes are very popular worldwide, because they have the longest operating lives.
High quality of Russian tubes is achieved by a high temperature bake-out of ceramic than in the West. Please inform us about the quality of the tubes. For further information please contact us by E-mail . All tubes and their analogs are manufactured in Russia. We have many other tubes.