Kompfner Multiple-Beam Klystron MKC-1

Historical Kompfner MKC-1 multiple-beam klystron prototype (modern replicas) for research, producing high gain at S-band. HTS 8540.79.10.00 as klystron microwave tube, even for laboratory/research use matching technical specs. Named after inventor Simon Kompfner.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.3%+35.0%38.3%
🇲🇽Mexico3.3%+10.0%13.3%
🇨🇦Canada3.3%+10.0%13.3%
🇩🇪Germany3.3%+10.0%13.3%
🇯🇵Japan3.3%+10.0%13.3%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

9023.00.00Lower: 17.5% vs 38.3%

If educational demonstration instruments

Lab demonstration instruments shift to Chapter 90 if primary educational function.

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Import Tips & Compliance

University/government end-user statements speed clearance; radiation safety certification

Avoid antique valuation disputes with modern replicas

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