Klystron Power Amplifier Tube from Mexico
Klystron tubes are specialized linear beam vacuum tubes used for amplification of microwave signals in high-power applications like radio transmitters and particle accelerators. Classified under HTS 8540.89.00 as other thermionic tubes due to their electron beam focusing mechanism in vacuum environment.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include frequency range and power output specs in commercial invoice for proper duty assessment
• Export control documentation often required for high-power klystrons due to dual-use technology
• Avoid misclassification as broadcast equipment parts under 8525; these are standalone amplifier tubes