12AT7 Double Triode Vacuum Tube from Canada
The 12AT7 (ECC81) is a medium-gain dual triode vacuum tube essential for audio preamplifiers in guitar amps and hi-fi systems. Classified under HTS 8540.89.00.40 as a tetrode-equivalent through its dual triode configuration in thermionic vacuum tube form. Known for its low noise and musical tone characteristics.
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
• Specify heater voltage (12.6V) and pin configuration (9-pin miniature) to confirm thermionic classification
• Include matching NOS (New Old Stock) certification for vintage tube authenticity requirements
• Watch for matched pair declarations which affect statistical reporting suffixes