[Unverified] LM358 single power supply to dual power supply

1. Recently, most DIY headphone amps and power amplifiers require dual power supplies. However, I only have a single power supply.
2. Search the Internet for information and draw pictures. The goal is to achieve single-to-double conversion at the lowest possible cost. The most common LM358 operational amplifier is used to realize virtual ground and MOS tube current expansion.
3. Due to work and study reasons, I only wrote a sheet for the time being.
4. PCB automatic wiring warning, BOM is automatically generated, subject to the schematic diagram.
5. Why do you use straight plug-ins? It is to clear the inventory at home.
6. As for the verification, it may take some time. The main reason is that I really don’t have the funds to make plans. Secondly, I have too many projects on hand and I am temporarily busy due to professional reasons.
7. If you want a smaller voltage difference between the two sides, you can replace it with a lower noise op amp such as 2903.
8. Electronics is just my hobby in my busy schedule. This is my first time posting. I hope the bosses can give me valuable suggestions.