Traveling Wave Tube (TWT) from Germany
Traveling wave tubes are velocity-modulated tubes that provide high gain amplification at microwave frequencies, essential for satellite communications and military radar. HTS 8540.89.00 covers these as other thermionic tubes due to their specialized electron interaction with electromagnetic waves.
Duty Rate — Germany → United States
13.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• ITAR/EAR export licenses frequently required; verify classification before import planning
• Detailed helix structure and collector specifications needed for customs technical review