Changing, yet staying the same!
About 15 years ago, I interested my son in measuring the power output from KSCO, and plotting levels from different locations around the county. His panning, circuit building, measurements, and documentation won him an honorable mention at the Santa Cruz County science fair, and an IEEE Award.
Fast forward 15 years. Now you can use a 3D Printer to “print out” most of the components and build a cat’s whisker receiver. Here is the link to an article, and video by Sage Hanson, on how without any soldering, electronics experience, electric cord, or even batteries you can print a receiver. And he’s willing to show you how to do it, too. Enjoy sharing this with a youngsters, or revisiting your youth!