Eighty years ago this month, the November 1938 issue of Radio Craft carried the plans for this handsome one-tube regenerative set built around a type 1231 pentode tube.  The tube appears to be unobtainium today, and was an amplifier tube used in early television circuits. It appears that a more available 7V7 can be substituted.

The author reported that he was tasked, right before deadline, in whipping up a circuit and construction article for a simple receiver, and designed and built the set in a single evening before sitting down to write the article. With just a short wire dangling out the window of a modern steel building, the author reported that both broadcast and shortwave stations began pouring in.