I have ordered a few PCBs of my version of the SMPS design. Two sided in PCB green circa 14x12cm.
Here is the schematic and PCB:
View attachment smps02.pdf
My version is for both 115VAC and 230VAC by use of a jumper.
It has an optional feedback loop with an optocoupler. You dont have to use this, but its there.
Read this thread (MultiSims messages) for what is necessary for the basic version.
The trafo is a ETD49 with N87 core. I bought them from mouser.com.
Winding info is in the schematic and in this thread. (Again: Scan for MultiSims messages)
All other components are standard and NON SMD.
It is still the first version, a prototype, but if you're interested you can buy one from me.
This will keep costs low and I will make the final version (maybe this one ?) available for purchase too.
I can also supply the trafo. But only in combination with the PCB.
Contact me for shipping costs etc.