Varian VKP-7865A X-Band Pulsed Klystron from Japan
The Varian VKP-7865A is a pulsed klystron oscillator producing 5 MW peak power at 9.3 GHz, used in high-resolution weather radar systems for atmospheric monitoring. Classified under HTS 8540.79.10.00 as a klystron microwave tube, it employs multiple resonant cavities for RF power generation in pulsed applications. Meets chapter criteria for thermionic tubes excluding grid-controlled variants.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Comply with ITAR/EAR export controls for defense-related radar klystrons; provide frequency/power specs in entry docs
• Test for vacuum integrity to prevent classification disputes as defective tubes