You can buy two wire line cords with a polarized plug. This can prevent the chassis from being connected to the AC side of the line. Most AC/DC radios would have used rubber cords. Modern plastic type are ok.
Norm
: What is the best way to replace a cord on a radio with no transformer?Do I use a 2 or 3 wire cord?What is the best choice for safety and what is the best choice for original type if the radio is valuable.