Tungsol replacement tubes kit for the Rivera Chubster 40 and R30. Uses 6L6 tubes for maximum punch and full lead sound with a round, smooth bottom end. The set includes the following tubes:
4x 12AX7 / ECC83 Tungsol
1x 12AX7 / ECC83 Tungsol Balanced
2x 6L6GC STR Tungsol Platinum Matched
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