[whirligig]

Thanks, I get what the line caps are doing now, but not needing a polarized plug? What happens if the 80 year old transformer in this radio begins to fail? For example, the primary winding overheated sometime in its life and the insulation is breaking down shorting itself and/or to the iron core. Doesn't a polarized plug with the hot side wired to the switch and a grounded chassis offer some protection?