Eighty years ago this month, the September 1945 issue of Radio Craft showed this circuit for a simple one-tube regenerative receiver. It had been sent in to the magazine by one Jim Gary of Kenedy, Texas, who reported highly satisfactory results, including pulling in both coasts from South Texas.

Batteries were hard to get, but this one ran on five flashlight batteries. A single cell lit the filament of the 1Q5-GT tube, and the B+ of just six volts was supplied by four more. For portability, the set could be constructed in an average size cigar box.