Thales TH629 Klystron Amplifier from Japan
A CW pulsed klystron tube operating at X-band frequencies for radar transmitters and scientific accelerators. Falls under HTS 8540.79.2000 as 'other' microwave tubes (klystrons) excluding grid-controlled variants. Provides high power output for military and research applications requiring precise frequency control.
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
• Export license may be required for high-power klystrons (ITAR/EAR); provide frequency/power specs matching subheading
• Ensure no grid-control features per exclusion note
• Common pitfall: misclassification as complete radar under 8526