The plans for this handsome two-tube long wave receiver appeared in the Fall 1960 issue of Radio-TV Experimenter.
The AC-DC set used two dual tubes. The two halves of the 6AN8 served as RF amplifier and regenerative detector. Half the 6AU8 was used as audio amplifier, with the triode section pressed into service as rectifier. The set covered 85-550 kHz, and with modification (addition of a coil) could be pressed into service on the broadcast band.
The article addressed the kinds of signals that could be heard on the long waves. At the time, they included the old A-N aviation beacons we’ve previously described.