12AX7/ECC83 Dual Triode Tube from Canada
The 12AX7 (ECC83) is a miniature dual triode vacuum tube widely used as a low-noise preamplifier in guitar amplifiers, studio preamps, and vintage radio receivers. Its high gain and low microphonics make it ideal for audio signal amplification. Falls under HTS 8540.81.00.00 as a classic receiver/amplifier thermionic tube.
Duty Rate — Canada → United States
14.2%
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
• Require manufacturer test data showing mu factor and gain characteristics typical of amplifier tubes
• Label with exact electrical specs to prevent confusion with power tubes
• Obtain FCC compliance if marketed for broadcast receivers