1925 Wearable Crystal Set

The gentleman shown at left, pictured in the October 1925 issue of the magazine The Experimenter, is, according to the article, what the well-dressed radio man would be wearing in the near future. He is equipped with a self-contained receiver, capable of pulling in stations within 10 miles.

It’s a crystal set, and the loop antenna means that you don’t have to worry about an antenna or ground connection. You can move about freely listening to your favorite program.