Line Repeater Signal Conditioning Board from Japan
A printed circuit board assembly with microphone preamplifiers for analog telephone line repeaters. It conditions low-level audio pickup signals for transmission over copper lines, serving as a part of audio-frequency electric amplifiers.
Duty Rate — Japan → Canada
0%
Import Tips
• Ensure the board is declared as a part of an audio-frequency electric amplifier, not as a complete amplifier
• Keep technical documentation showing its function in line repeaters
• Verify if the board is a printed circuit assembly, which may affect classification