Storage Tube Memory Device from Canada
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.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Historical artifact declaration may qualify for duty-free museum entry (9705)
• Prove functionality vs scrap status to avoid 8549 classification
• Documentation must show electron beam addressing vs solid-state memory