580STANDARD_TUBE_SET 146STANDARD_TUBE_SET GROUPING_PAIR_MU-CV4004 JJ-ECC81 70STANDARD_TUBE_SET GL-ECC83 NOS-5R4GY NOS-12AX7A-RCA 150STANDARD_TUBE_SET GROUPING_PAIR_EH-6973 EH-12AU7 566STANDARD_TUBE_SET SI-EL34-B TK-EL84 NOS-6106 395STANDARD_TUBE_SET GROUPING_PAIR_SO-7027 SO-EL84 459STANDARD_TUBE_SET TS-6L6STR