Valve Preamp Heater Transformer from Mexico
20VA custom wound transformer for vacuum tube guitar amplifier heater circuits with center-tapped 6.3V filament winding. Audio-grade construction qualifies under HTS 8504.31.40.35 low-power transformer heading.
Duty Rate — Mexico → United States
31.6%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Specify DC resistance and inductance values; include tube compatibility chart; verify phase splitting functionality if applicable