All,
I've recently had cause to trace out the circuit diagram for a Sorensen PTM12-10.5 power supply, since I could locate no schematic or service manual on line. It's pretty simple, but I thought I would share the diagram here in case anyone else has need of one.
Good catch Dougy! Updated file attached with mistakes fixed. There are a few component values I can't read, which I may update if I get the chance to remove these.