The prolific [Peter Waldraff] is at back it with another gorgeous micro train layout. This time, there are no plugs and no batteries. And although it’s crank-powered, it can run on its own with the flip of a switch. How? With a supercapacitor, of course.
This is a companion discussion topic for the original entry at https://hackaday.com/2024/04/12/crank-powered-train-uses-no-batteries-or-plugs/