6N8S tubes with holed anodes, made in 1950s, are the one of best of the world of 6SN7 tubes, highly sought after by audiophiles.
Produced at 1954 by MELZ. Same date codes.
Tubes are matched by anode current with 5% tolerance.
All tubes are new, never used.
Equivalents: 6SN7GT, ECC32.
6N7GT, 6SN7GT, 6SL7, 6J5GT, 6V6GT, 6F6GT, 6SQ7, 6Q7, 6SH7, 6AC7, 6J7, 6SJ7, 6X5GT, 6H6GT, 5V4G, 5Y3G, 0A3, 0C3, 0D3, E80CC, ECC81, ECC82, ECC83, ECC84, ECC85, E88CC, EF6, EF12, EF14, EF80, EF86, EL83, EL84, PL84, EL34, 6CA7, EL36, YO-186, 6S4S, 6N1P, 6N2P, 6N2P-ER, 6N3P, 6N5P, 6N5S, 6N6P, 6N7S, 6N8S, 6N9S, 6N13S, 6N14P, 6N15P, 6N16B-V, 6N17B-V, 6N18B-V, 6N21B, 6N23P, 6N23P-EV, 6N24P, 6N28B-V, 6N30P-DR, 6N33B, 6S1P, 6S2S, 6S2P, 6S3P, 6S3P-E, 6S4P, 6S4P-E, 6S5S, 6S8S, 6S15P, 6S17K-V, 6S19P, 6S19P-V, 6S31B-R, 6S33S, 6S33S-V, 6S41S, 6S45P-E, 6S46G-V, 6S51N-V, 6S52N-V, 6S53N-V, 4P1L, 6P1P, 6P1P-EV, 6P3S, 6P3S-E, 6P6S, 6P7S, 6P9, 6P13S, 6P14P, 6P14P-K, 6P14P-EV, 6P15P, 6P15P-V, 6P15P-EV, 6P18P, 6P23P, 6P31S, 6P36S, 6P37N-V, 6P41S, 6P42S, 6P43P-E, 6P45S, 6R2P, 6R3S-1, 6R4P, 6G2, 6G7, 6J1P, 6J1P-EV, 6J2P, 6J2P-EV, 6J3, 6J3P, 6J4, 6J4P, 6J5P, 6J7, 6J8, 6J9P, 6J9P-E, 6J10P, 6J11P-E, 6J20P, 6J22P, 6J32P, 6J38P, 6J38P-EV, 6J43P-E, 6J44P, 6J49P, 6J51P, 6J52P, 10J12S, 6F1P, 6F3P, 6F4P, 6F5P, 6F6S, 6F12P, 6E1P, 6E3P, 6E5S, 6E5P, 6E5P-I, 6E6P-E, 6H2P, 6H6S, 6A7, 6A8, 6B8, 1C21P, VO-188, 5C3S, 5C4S, 5C4M, 5C8S, 5C9S, 6C4P, 6C4P-EV, 6C5S, 6C10P, 6D20P, 6D22S, GU-13, GU-17, GU-29, GI-30, GU-32, GU-50, GU-46M, GU-48, GU-56, GM-57, GM-70, GM-100, GK-71, G-411, G-807, G-837, G-811, GU-81M, SG-1P, SG-2P, SG-15, SG-16, SG-2S, SG-3S, SG-4S.