Broadcast Transmitter Klystron RF Structure from Japan
RF cavity interaction structure for high-power klystrons in TV/radio broadcast transmitters. HTS 8540.99.4000 for microwave tube components in 8540.71-79. Enables multi-megawatt RF output.
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
• FCC frequency allocation docs essential for transmitter components
• Weight/structural specs prevent misclassification as complete tubes
• Cooling system compatibility noted in assembly instructions