Klystron Power Amplifier Tube
A klystron is a linear beam vacuum tube that amplifies microwave signals through velocity modulation of an electron beam. It is used in high-power applications like radio transmitters and particle accelerators, and falls under this tariff item as an 'other' thermionic tube.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the klystron is a specific type listed elsewhere
Other microwave tubes may be classified under subheading 8540.79.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Classify the klystron as a vacuum tube, not as a microwave amplifier assembly
• Provide technical specs showing the electron beam and velocity modulation operation
• Ensure the tube is not part of a complete transmitter system
Related Products under Tariff item 8540.89.00
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