Prototype the top layer of PCB I use as ground plane only and unnecessary becuase all importance PCB route is the bottom only.
Adjust VR1 and VR2 to achieve the desired voltage output (±15V at CON2).
Schematic
PCB
Components
| D1-D4 | 1N5822 |
| C1-C4, C13, C14, C19, C20 | 0.1uF/63V flim capacitor |
| C11, C12 | 220uF/16V |
| C15, C16 | 47uF/35V |
| C5-C10 | 2200uF/25V or 35V Electrolytic capacitor (C7 and C10 may be 1000uF/25V) |
| L1 and L2 | 100uH |
| Q1 | IRF640 N-channel MOSFET |
| Q2 | IRF9640 P-channel MOSFET |
| IC1 and IC2 | NE5534 OP-Amp |
| D9 and D10 | LM326-5.0 Voltage reference or LM329DZ/6.9V |
| Ttransformer | 15-0-15 V, 2A |
| All resistors are Vishey/Dale RN-55 |