Illustrated instructions in both Japanese and well-translated English are included, and the hour-long assembly only requires a screwdriver, some scotch tape, and a battery. This kit definitely delivers on the archaic, hands-on audio experience. Recommended for all ages.

So, what can you get from a mid-priced tube amp kit nowadays? If you’re willing to play by the rules, the answer is quite a bit. The PoddWatt produces a smooth sound that rarely offends, and as a kit, the build is fantastic. The instructions are thorough, and the components USA-sourced. The best part? The listening just gets better with time.

Check out our interview with creators Bruce Heran and Rodney Brinker here.

Unlike traditional crystal sets, the XS-402 uses a molded, high frequency choke, eliminating the frustrating coil-winding process, and features large solder pads, great for learning to solder. It’s a perfect project for adults to build with kids, and it serves as a great tool to teach basic radio theory, soldering, and handling of electronic parts and PCBs.  If you’re interested in “old school” radio technology or want to learn more complex skills, this is the kit for you.