Note: this item is only one bare board, not contain other parts. no schematics. Size: 105 * 46 * 2mm (L*W*TH);LT1083CP (LM317 / LT1086) precision high current adjustable power supply, 2mm thick double-sided gold-plated PCB.You can choose LM317 / LM350 / LT1083CP / LT1084CP / LT1085CP / LT1086CP, etc., They can be installed directly on the board.From the regulator performance and power considerations, it is recommended to input AC slightly greater than the required output DC can be.For example, DC9V out, available AC10-12V into (please note that the use of pressure to change the freedom).Especially to the novice that the exchange of input is to add the transformer, can not directly electricity To facilitate your installation and commissioning, with the board with a circuit diagram and component table.Note: The output voltage value Uo = [(VR / R) +1] x1.25V.Package included:1x Bare PCB