Russian 6P15P-EV tube broadband power amplification output pentode. High reliability, life non less 5000 hours! Near equivalent: EL83, SV83, EL803S, 6P1T
Russian 6C4P-EV kenotron tube, two-anode. Designed for rectification of alternating current of industrial frequency 50Hz. Equivalent: 6Z4, EZ90, 6Z31, SV4005
Russian 6N3P-E double triode tube with separate indirectly heated cathodes, low frequency preamplifier. Extended product life. Near analogue: ECC42, 2C51, 5670, 6385
Russian electron tube 6P14P-EV low-frequency output pentode. Great sounding, high quality! Full analog: EL84, 6BQ5. Near equivalent: 7320, 7189, 7189A, 6P15, 6L40 Tesla, N709