Other
Thermionic, cold cathode or photocathode tubes (for example, vacuum or vapor or gas filled tubes, mercury arc rectifying tubes, cathode-ray tubes, television camera tubes); parts thereof: > Microwave tubes (for example, magnetrons, klystrons, traveling wave tubes, carcinotrons), excluding grid-controlled tubes: > Other: > Other
Duty Rate (from China)
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
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8540.79.20.00
CPI TMD VTS-2703 Traveling Wave Tube
A high-power traveling wave tube (TWT) amplifier used in satellite ground stations for RF signal amplification in Ka-band communications. Classified under HTS 8540.79.2000 as a microwave tube (traveling wave tube) excluding grid-controlled types, specifically 'other' microwave tubes not covered by prior subheadings. Essential for broadband satellite uplinks requiring high gain and efficiency.
Thales TH629 Klystron Amplifier
A CW pulsed klystron tube operating at X-band frequencies for radar transmitters and scientific accelerators. Falls under HTS 8540.79.2000 as 'other' microwave tubes (klystrons) excluding grid-controlled variants. Provides high power output for military and research applications requiring precise frequency control.
Communications & Power Industries VZS-1203 Magnetron
Frequency-agile magnetron for L-band radar applications in weather monitoring and air traffic control. HTS 8540.79.2000 covers this as 'other' microwave tube (magnetron type), excluding grid-controlled tubes. Delivers pulsed high-power microwave generation for long-range detection systems.
Teledyne e2v CPM240 Magnetron
Cooker/pulsed magnetron for S-band maritime radar systems. Classified HTS 8540.79.2000 as other microwave tube (magnetron), providing reliable microwave power generation for marine navigation.
L3Harris TWTA-50S Traveling Wave Tube Amplifier
Military-grade TWT amplifier for electronic warfare and telemetry applications operating 2-18 GHz. HTS 8540.79.2000 for other microwave tubes (traveling wave tube type). Compact design for UAV/drone integration.
Canon 7KVA-2 Klystron
High-power CW klystron for particle accelerator injection systems. HTS 8540.79.2000 as other microwave tube (klystron). Used in medical linear accelerators and research facilities.
Mitsubishi 2M239 Magnetron
Industrial magnetron for microwave heating/sintering furnaces operating at 2.45 GHz. Classified under HTS 8540.79.2000 as other microwave tube. High-reliability design for continuous materials processing.
Saab 881301-1 Carcinotron (BWO)
Backward wave oscillator carcinotron for ECM jamming systems covering 8-12 GHz. HTS 8540.79.2000 specifically includes carcinotrons as other microwave tubes. Wideband tunable source for electronic countermeasures.
Varex Imaging CKST-10K Klystron
10kW S-band klystron for cargo screening and security imaging systems. HTS 8540.79.2000 as other microwave tube. High duty cycle for continuous security scanning applications.
TMD Technologies PTX-52 Travelling Wave Tube
Miniaturized TWT for missile telemetry and drone datalinks. HTS 8540.79.2000 microwave tube classification. Ruggedized for high-g environments in guided munitions.