This is a Crystal Radio that I made in December 2008; similar to like the way some of the old time Crystal Radios were made.
The front left Fahnestock Clip is the antenna terminal, and the front right Fahnestock Clip is the ground terminal. After I built it, I could pick up 4 radio stations; then later it only got 1 radio station. So, I disconnected the antenna wire that I also had a jack coupler on it, and I moved the antenna wire on the coil, instead moving of the crystal diode wire; and I got around four radio frequency stations, again.
I didn't think I would get this many frequency stations with this crystal radio coil design. It works good, plays good and is very durable when using it.