6P15P (6П15П) pentodes for output stages of high frequency amplifiers. Although this tube is often described as a russian equivalent of the EL83 tubes, it has a different pinout, so you have to be carefull. 6P15P is a direct replacement for the SV83 from the Svetlana Electron Devices. Tubes are tested and measured with the L3-3 tester, matched in pairs. Service life guarantee: not less than 3000 operating hours. New old stock. Years of production: 1984 and 1985 (please look at the gallery pictures).