6BA6 Pentagrid Triode Converter Tube from Japan
The 6BA6 is a heptode/pentagrid triode vacuum tube designed for superheterodyne radio frequency conversion. It falls under HTS 8540.89.00.40 as a multi-grid thermionic tube functioning as a triode-heptode combination. Used in classic AM broadcast receivers.
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%
Import Tips
• Document grid count (5 grids) and internal oscillator circuitry to justify multi-electrode tube status
• Provide evidence of metal or glass envelope construction versus modern plastic encapsulated devices
• Declare tube type approvals for countries with vacuum tube equipment regulations