6N2P-V (6H2П-B) is a low-microphonics double triode. High durable and reliable - V version. Close by characteristics to the 12AX7, ECC83, E83CC. 6N2P-EV tubes are a replacement for 12AX7 in any typical amp application, but they have 6.3V heater voltage and would need a different wiring than stock 12AX7's. New old stock tubes in original boxes, datasheet included. Made in the 60's by Reflektor Saratov.