This is a bare PSU PCB for audio amplifier application. It consists of two separate parts on the same board : 1. A high current rectification and filtering circuit ; 2. A low noise low impedance CCS shunt regulator. This board is best to be used for power supply of integrated amplifier, where the high current side serves the power amplifier, and the shunt regulator serves the preamplifier, or for power amplifier that high current for the output drivers and the shunt regulator for voltage gain and input section. The high current section can house 6 snap-in type filtering capacitors with lead pitch of 10mm and diameter of 35mm. The shunt regulator section can provide shunt current good to 100mA or more, depending on the heatsink size and efficiency. Specifications : High current section: Operating voltage : AC 15Vx2 to 55Vx2 Output voltage : DC +/- 20V to 75V Shunt Regulation section : Operating voltage : AC 26Vx2 to 55Vx2 Output voltage : DC +/-30V to +/-60V adjustable. PCB dimension : 138mm x 138mm. PCB thickness : 2mm Copper thickness : 2 ounce copper ( 70um !) , gold-plated Finishing : Double-sided solder-resist surface for utmost reliability. We provide schematic and part list to buyers BY EMAIL. We do air shipping worldwide at US$4.50. We welcome combine shipping. Powered by SoldEazy