Public domain photos

The image shows an old fashioned heterodyne receiver in a wooden box on display in a museum. The box is placed on a glass surface and there is a paper with some text on it beside it. On the right side of the image, there are some objects placed on the surface.

The image shows an old fashioned heterodyne receiver in a wooden box on display in a museum. The box is placed on a glass surface and there is a paper with some text on it beside it. On the right side of the image, there are some objects placed on the surface.Open in library