Dual Rail PSU Rectifier PCB

A PCB to assemble a split rail power supply.
Features:
* Input and output via triple 5mm pitch holes for direct wiring or terminal blocks.
* Provision for either 1A 1N400x series OR 3A 1N540x series diodes.
* Space for up to four smoothing capacitors of 5mm or 7.5mm lead pitch and up to 20mm diameter.
* Dimensions: 98mm x 48mm.
* Four fixing holes 3.2mm diameter on 39 x 81.5mm centres.

A dual rail (or split) power supply provides a positive voltage, a negative voltage, and a common reference (Ground). It is essential for circuits with symmetrical power needs, such as operational amplifiers (op-amps) and audio amplifiers.

Circuit:

Layout: