In 1944, with wartime bans in place, Hallicrafters didn’t have any equipment for sale to civilians. But they were gearing up for a postwar boom, and they figured a lot of Boy Scouts would be in the market for radio equipment as soon as the war was over.

This ad appeared 75 years ago this month in the December 1944 issue of Boys’ Life. It encourages young radio fans to send 25 cents to the ARRL to get the most recent edition of “How to Become a Radio Amateur,” a splendid book.