Telephone Repeater Audio Input Module from China
An audio input module serving as the microphone interface for analog telephone line repeaters. It amplifies and conditions weak voice signals in long-distance analog repeater stations, functioning as a part of audio-frequency electric amplifiers.
Duty Rate — China → Canada
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Import Tips
• Ensure the module is declared as a part of an audio-frequency electric amplifier, not as a complete amplifier
• Keep documentation showing its specific use in repeaters
• Verify if the module is a printed circuit assembly, which may affect classification