[Reece]

Looking at the schematic, this radio did not use a tuned loop antenna. The antenna coils are already in the radio, part of the circuit, under the chassis. A loop would usually substitute for an antenna coil and eliminate the chassis antenna coil. This radio would use a conventional long wire antenna and a ground. The holes in the cabinet might possibly be for some other model chassis that would use this same cabinet and could take a rotatable loop; however, loops like that weren't common until a bit later. It is possible to staple a wire just inside the perimeter of the rear of the cabinet, and connect one end to the antenna lead, but it's not really a loop. It would probably work OK but not as well as 10 or 15 feet of wire inside the house or a real outdoor long wire antenna.