Built to the same special tube request specs of leading amp manufacturers of the 1960s, this rugged and reliable power tube excels in the most demanding guitar amp circuits.

Soft, medium, and hard style descriptions refer to break up modes of the tube for an overdriven guitar signal. The Tungsol 6L6 GC STR Power Tubes are soft-rated tubes that break up slow and have the highest amount of headroom, while hard-rated tubes break up easier and have the least headroom, yielding a heavier, harder distortion. Medium-rated tubes fall in between.

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