8540.89.00.40/6SN7GT Dual Triode Audio Tube/Japan

6SN7GT Dual Triode Audio Tube from Japan

The 6SN7GT is an octal base dual triode vacuum tube prized for phase inverters and driver stages in hi-fi and guitar amps. It qualifies for HTS 8540.89.00.40 as a medium-mu thermionic triode in glass envelope form. Features indirectly heated cathodes for low hum.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• Declare octal 8-pin base and GT glass envelope dimensions for proper tube identification

• Include plate dissipation ratings (5W per triode) in technical specifications

• Matched pair/trio declarations required for balanced audio applications