Reference: EL84_GGL-quad

Brand: Gold Lion

Reference: EL34b_Tung-quad

Brand: Tungsol

Reference: EL34_JJ-quad

Brand: JJ

Reference: 6L6GC_JJ-quad

Brand: JJ

Reference: 6550_EH-quad

Brand: Electro Harmonix

Reference: KT88_GGL-quad

Brand: Gold Lion

Reference: KT66_GGL-quad

Brand: Gold Lion

Reference: 7591A_Tung-quad

Brand: Tungsol

Reference: 7581A_Tung-quad

Brand: Tungsol

Reference: 6V6GT-Tung-PL-quad

Brand: Tungsol

Reference: 6V6GT_EH-quad

Brand: Electro Harmonix

Reference: 6L6GC_Tung-PL-quad

Brand: Tungsol

Reference: 6550WE_Sovtek-quad

Brand: Sovtek

Reference: 6550_Tung-quad

Brand: Tungsol

Reference: 5881_Tung-quad

Brand: Tungsol

Reference: EL84_Tung-oct

Brand: Tungsol