Building a DIY Music Server

[Tatang]

14 hours ago, RickyV said:

I was going to say “ but I do not see any wires going underneath the capacitor bank” 

But 

 

But with a transformer symbol on the pcb, confusing.

 

Thats a symbol of common mode choke, so taiko use 1 inductor choke n 1 common mode choke to isolate the noise before entering the dc-atx, thats make sense to reduce the noise entering the dc atx converter

 

 

[Tatang]

If the secondary output of the toroid transformer is more than 30v, it doesnt make sense to use the array of mundorf ag 47000uf 25v, it will reduce the age of that capacitor array, the secondary output of the toroid should be less than 25v (less than 20v is better). Thats what i think of based in the capacitor spec. I just give opinion…

[Tatang]

27 minutes ago, LTG2010 said:

The big Lundhal Chokes are dual. Theres a number of ways to connect up but it might be like the third example: Serial connection for improved common mode rejection. eg. the first 47uf cap and bpass just after the rectifier circuit. 2 chokes on +ve and return path completely decoupling capacitor bank which would follow eg, your 160uf or 720 uf depending what supply ou are making. Its easy to try it this way and compare to 2nd choke spliting the second capacitor bank. I mean like below, but one dual choke eg Lundhal or 2 single hammonds etc.

 

I think it looks like that, so it improve common noise rejection before enter the dc atx

[Tatang]

They coated the wire from transformer, All transformers just like that...I suggest you can scrub the coating using sandpaper until its all come off, and you can see the copper wire. You can solder in the copper wire...using higher temperature solder 400 - 450 C