Hello,

Check that D7 is fitted the right way round.
In the other direction the mentioned voltage would be possible.

Bertus

Hi guys !
First i'm new member here with you , and i hope you guys help me with my power supply kit problem:
Like most people , i have problem with this kit wich is i get -0.45v when the V and A pot are fully anti-clockwise and i get only 5.1V when the V and A are fully clockwise.
I checked almost the whole circuit with the help of schematic that is made by "Netzener" .
I'm using 12-0-12 , 3A transformer...
So guys can you guess where is the probleme? I will attach a pdf file wich can help you understant the whole circuit...
Thank you .

 

Hello,

I have moved your post to a thread of your own as you did hyjack a thread that belongs to an other member.

What is the voltage accross D7?
That should be around 5 Volts.

You can continue in your other thread:
Chinese power supply troubleshooting : probleme to ask for...

Bertus