talkback circuit
... Taligent Taligent公司 talk back circuit 对讲电路 talk back equipment 对讲设备 ...
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文中介绍一种新型总线形式、双工通话的对讲系统，给出完整电路原理图及调试方法。
The paper introduces a new type of common line talk back system. Complete circuit diagram and an adjusting method are presented in this paper.
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有优良的消侧音电路，对讲声音清晰。
High-quality circuit to promise sharp clear voice.
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