Black wire, hot, on AC cord connects to the brass terminal on the accessory outlet. From there to the INSIDE contact of the fuse-holder. Outside contact of the fuse-holder goes to the Power switch. Other side of Power switch goes to Power Transformer Primary.
White wire, return, on AC cord goes to the silver terminal on the accessory outlet. From there to
other Power Transformer Primary lead.
The AC ground switch makes a good place to do this return/primary connection. Most people recommend removing the "ground" cap which disables the switch's function and adds a margin of safety should this cap ever short.
