Dual bridge dual polarity unregulated power supply module for audio power amplifier applications.
This item has been assembled, and electrical test passed.
FR-4 fiber glass material PCB.
8 x  HER303 3Amp/200V high efficiency rectifier diodes.
4 x  Original USC 4700uF/50V electrolytic capacitors for a clean and stable output.
2 x  100nF metal film capacitor, conducive to filtering high-frequency noise.
HQ terminal blocks, easy connection wires.

Specifications:
Maximum AC Input : DUAL 28VAC  (28V - 0V / 28V - 0V mode, must use FOUR wires output power transformer, transformer no-load voltage must be less than 30VAC )
Maximum DC Output: +/- 40V / 3 Amp.
PCB Size : 96 x 50mm ( 3.78 x 2 inch ).
PCB Thickness : 1.6mm ( 0.063 inch ).
Maximum Height : 40mm ( 1.6 inch ).