Eighty years ago this month, the February 1943 issue of Radio Craft carried this circuit for a simple one-tube regenerative receiver. It had been sent in to the magazine by one Joseph Niwranski of Brooksby, Saskatchewan, and was dubbed the “Saskatchewan Space Charger. The set, which employed a 1A5GT tube, was said to perform splendidly. It reportedly had enough pep to drive a speaker on strong stations.

According to this Find a Grave entry, the author was about 17 when he designed the circuit. He died in 1992 at the age of 67.