I put this power supply together and it works. But after some modifications, the assembly according to this scheme is ok until the transformer windings are switched (120 Watt 2 X 15V toroid), ZD2 overheating (voltage at C10 - 20V). I made the transformer winding switching system on the LM 358, power supply from additional winding 15V, intended for a four-digit double A / V meter from Ali. Now it works without a problem, only there is a problem with resetting the ammeter, after starting it shows 32 mA. I used the same meters in my colleague's eurotips ETL power supply, they work without any problems in it. When comparing both of these power supplies, I bet on ETL.