Eighty years ago this month, the April 1944 issue of Radio Craft carried this circuit for a shortwave receiver said to have “brought in those far-off, hard-to-get stations.” It had been submitted to the magazine by one Jerome N. Seibert of St. Paul, MN. He noted that he used the 27 tube as a rectifier, because that was what he happened to have on hand. The use of a power supply rather than batteries is probably because batteries were hard to come by during the war.
The editors of the magazine suggested swapping the 27 rectifier with the 45 tube used as an audio amplifier. They noted that the 27 would provide more audio, and the 45 would be able to supply more power. Some modifications of the circuit were required.
It appears that the author was this Jerome N. Seibert, who would have been 19 years old when he submitted the circuit to the magazine. His gravestone indicates that he served in the U.S. Army Air Corps in World War II, meaning that he was drafted or enlisted shortly after graduating from high school and sending his circuit to the magazine. He died in 1994.