E88CC/6922 Frame Grid Triode from Canada
The E88CC (6922) is a premium frame-grid dual triode vacuum tube for professional audio and measurement equipment. Classified under HTS 8540.89.00.40 due to its advanced thermionic construction with rigid frame grid elements. Used in broadcast consoles and test instruments.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.03.0110%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
Import Tips
• Specify frame grid construction and gold-pin variants in import declarations
• Include noise figure specifications (<2.5 µV) confirming premium audio grade
• Provide military/aerospace approvals for 6922 variants used in avionics