Russian indicator tube 6E5S (6E5C) - magic eye. Tested on BM215A, perfect condition. Printing is already weak on some of them (please look at the gallery of the actual tubes). Equivalent of the american 6E5, but with an octal base! Russian 6E5S tube may be also used as a replacement for the scarce EM4 or EM34, but it needs to be rewired. New old stock tubes - new in box. Year of production: 1968.