Question PS 12

[Big Billy]

Pyramid ps 12 putting out 25 volt what to look for. Thanks

 

[USAFRet]

Pyramid ps 12 putting out 25 volt what to look for. Thanks

Your question needs a whole lot more detail.

 

[BFG-9000]

Here's the 20A model:

Manual and schematic for the 10A model is here and a video on its repair.