Russian vacuum tube 6N3P - dual triode with separate indirectly heated cathodes, low frequency preamplifier. Near analogue: ECC42, 2C51, 5670, 6CC42, 396A. NOS
Russian tube 6F5P is a triode-pentode with separate cathodes, amplification and generation of low frequency voltage. Near equivalent: ECL85, ECL805, 6GV8
Russian tube 6N15P - double triode for amplifying low-frequency voltage and generating high-frequency oscillations. Tube 6N15P is a direct electrical and physical equivalent: 6J6, ECC91, 6CC31and other variants: 6030, 6101, 6535, 6927, and 6J6WA
The Soviet 6F4P triode-pentode electron tube is used in the output stages of low-frequency power amplifiers. It is a direct replacement for the ECL84, 6DX8, 6DQ8. NOS
The Russian GMI-10 tetrode is designed for use in pulse modulators with anode pulse voltages up to 9kV and pulse currents exceeding 13A. The anode dissipation power is 41W. It is used in pulse radio transmitting devices