Klystron Power Vacuum Tube
Multi-cavity vacuum tube that amplifies RF signals through velocity modulation, used in particle accelerators and transmitters. Classified HTS 8540.89.00.80 as other vacuum tubes for high-power applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If static converters assembled
Complete power supply units containing klystrons shift to Chapter 85 heading 8504.
If for X-ray apparatus
Klystrons in medical imaging systems classify as X-ray apparatus parts.
If laboratory equipment parts
Integral to laboratory reactors/accelerators under Chapter 84.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Specify cavity count, frequency, and power rating to confirm vacuum tube status
• Radiation safety certification required for accelerator applications
Related Products under HTS 8540.89.00.80
Hydrogen Thyratron Switching Tube
Gas-filled switching tube using hydrogen for fast high-power pulse generation in radar and pulsed power systems. Covered by HTS 8540.89.00.80 as other gas-filled tubes.
Storage Tube Memory Device
Electrostatic vacuum tube storing binary data as charge patterns on dielectric surface, read/written by electron beam. Rare computer memory technology classified under HTS 8540.89.00.80 as other tubes.
Geiger-Muller Counter Tube
Gas-filled tube detecting ionizing radiation through avalanche discharge between electrodes. Classified HTS 8540.89.00.80 as other gas/vapor filled tubes for radiation detection.
Xenon Flashtube Trigger Tube
Small gas-filled tube providing high-voltage trigger pulse for xenon flashtubes in photography/strobe lighting. HTS 8540.89.00.80 for other gas-filled tubes.
Spark Gap Protective Tube
Gas-filled tube providing overvoltage protection by controlled spark discharge between electrodes. Used in telecom/power systems. HTS 8540.89.00.80 as other gas-filled tubes.
Vacuum Photomultiplier Tube PMT
A vacuum tube containing a photocathode that emits electrons when struck by photons, which are then multiplied to produce a measurable current. Classified under HTS 8540.89.00.80 as a photocathode tube not specifically covered by other subheadings in heading 8540. Used in scientific instruments like scintillation detectors.