Public domain photos

The image shows an old black box with a star on it, sitting on a white surface. It appears to be a heterodyne receiver, with a rectangular shape and a handle on the top for easy portability. The box is made of metal and has a glossy finish.

The image shows an old black box with a star on it, sitting on a white surface. It appears to be a heterodyne receiver, with a rectangular shape and a handle on the top for easy portability. The box is made of metal and has a glossy finish.Open in library