Shawn sent in a neat video from a radio hobbyist in Toronto, Canada, who’s put together a Gakken regenerative radio kit he ordered from Japan.
“It’s a vacuum tube regenerative receiver for the AM broadcast band. Even though the instructions are only in Japanese, the illustrations in the instruction manual make it easy enough to assemble.”
Check out some of his other videos as well. He’s got great documentation on building crystal radios, playing with magnetic levitation, and more.