Microwave Backward Wave Oscillator Tube from Canada
Backward wave oscillator tubes generate tunable microwave signals for test equipment and radar. HTS 8540.89.00 includes these velocity-modulated tubes producing electromagnetic waves through backward wave interaction.
Duty Rate — Canada → 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
• Frequency tuning range and output power specifications critical
• Magnetic field strength requirements for operation documented
• Avoid classification under signal generators (9030.82)