YOUR HELP IS NEEDED!! I have a model S40 40 amp 13.8 volt power supply made by the Luke company. This company was located in Lake City, MI. They are either out of business, moved, or someone has bought them out. My supply has gone sour and I don't have schematic, so I am trying to locate them or find someone who has experience with this supply and help my with a schematic. Thanks for the bandwidth. Dale Sinner, W6IWO