This radio wasn’t elegant looking, but it pulled in stations.  The plans for this simple one-tube regenerative receiver appeared in the September 1958 issue of Popular Electronics. The set could tune the broadcast band and three shortwave bands, courtesy of coils switched with a bandswitch. It would provide loudspeaker volume or drive headphones.

A single 12AU7 dual triode served as regenerative detector and audio amplifier. Most parts, with the exception of the coils, should be readily obtainable. It’s likely that the coils would have to be wound at home.

The set is mounted on two pieces of masonite pegboard, providing a ready made speaker grill. The speaker is mounted on a cardboard baffle. The author reports that the set pulled in HCJB almost immediately with a short indoor antenna, after constructing the set in a single evening.