This gentleman is pulling in a program on a three-tube set he built for only $4.06, following a design from the October 1940 issue of Popular Science.

The chassis for the set was an aluminum cake pan. The article noted that this had the advantage of being able to be cut with a normal pair of scissors. The handsome cabinet was made from scraps of wood from the author’s workshop. The coils for the regenerative set were made “honeycomb” style on cardboard forms. The set covered the broadcast band, but the author noted that by tweaking the size of the coils, it would be possible to pick up stations slightly above and below the standard broadcast range.

The efficient circuit provided loudspeaker volume, driving a PM speaker.