The utility model relates to a middle keying structure based on a rotating potentiometer.
本实用新型涉及一种基于旋转电位器的中间按键架构。
Set the frequency of simple, easy to operate, only an external potentiometer gently rotating the knob, you can set the frequency.
频率设置简单，操作方便，只需轻轻转动外接电位器的旋钮，就可以进行频率设置。
Set the frequency of simple, easy to operate, only an external potentiometer gently rotating the knob, you can set the frequency.
频率设置简单，操作方便，只需轻轻转动外接电位器的旋钮，就可以进行频率设置。
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