I attached an LED light to my crystal radio and it worked surprisingly well..
I found the Schematic for this Crystal Radio on Jim McNutt’s web site. It was called the Pixie 2 His web site is
At a later point I flew my kite with wire to be used as an antenna and attached the end of it to my crystal radio. The wire was picking up so much energy it shocked me when I touched it. Here is the link to my video.