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Dual-way flashing light string circuit with music (MC81P)

2017-02-01 05:35  
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Dual-way flashing light string circuit with music (MC81P)
As shown in the figure, it is a novel flashing light string controller for Christmas tree decorations, it has two-way flashing output with storing 6 songs, and it is characterized by alternately synchronized flashing of two string lights with music rhythm, and it uses buttons to control the sound of music and the skipping of light. VT1 and VT2 can choose 0.8~1A/400~600V small plastic one-way thyristor such as 2N6565, MCR100-8; b is Piezoelectric ceramic speaker or 27mm common Piezoelectric ceramic plate.