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%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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