石榴姐

Voice-controlled melody light (revised based on the official version of Lichuang)

 
Overview
It is revised based on the official version of Lichuang EDA and is mainly used for the practice of students in the analog electronics course of Taiyuan University of Technology.
The simplest triode amplifier circuit application for voice-activated melody light. Realize five diodes flashing with the music melody. Circular circuit board, the coupling capacitor is changed to non-polar 104, which makes the response more sensitive.
参考设计图片
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