Philmore PS123 Power Supply (2): description of unit as found

 I continue to work on the Philmore 12V Power Supply.  Below is a photo of the inside of the unit.  I've indicated where the diode bridge is connected directly to the output positive binding post of the unit. You can see the mounting location of the TO-3 pass transistor on the back of the chassis behind the transformer. A small circuit board, not shown, mounts on the floor of the chassis to the left of the transformer. 

The top and bottom view of the control PCB are shown below. 

There appear to be several uninstalled components on the board, these were probably components for some sort of short circuit protection.

I found a YouTube video of a bench repair of a PS123, replacing the pass transistor. 
https://youtu.be/5IpG66imsn8