Using 6A bridge rectifier, six filter electrolytic capacitors, three-stage filtering, the main capacitor has two specifications of 3300uF/25V and 2200uF/35V, which can be used as LM1875, TDA2030A, etc. The power supply voltage of low-voltage power amplifier is plus or minus 20V ( The power amplifier board with input dual AC <15V) and plus or minus 30V (input dual AC <22V) provides low internal resistance and low ripple power. The electrolytic capacitor of this power supply is a domestic genuine capacitor, and there are many brands. You can consult the brand of electrolytic capacitor used before shooting. Before using the board, please confirm the output voltage of the power transformer used, and the range of power fluctuations, and reserve a certain voltage margin. Before using the board, please confirm the output voltage of the power transformer used, and the range of power fluctuations, and reserve a certain voltage margin.

Output specifications:

3300uF/25V, input dual AC AC<15V

2200uF/35V, input dual AC AC<22V

Dimensions: length 60mm, width 30mm, height 28mm