A bunch of tips and troubleshooting stuff for people making crystal radios. Includes: - Antennas - Crystal earpieces - Speakers from piezoelectric crystal buzzers and crystals from gift cards - Diodes - Making good electrical connections - Capacitors, measuring capacitance and making capacitors - What is Earth ground and grounding and where do I get a good ground (wall socket, radiator, metal drain pipe, metal fence post) See also, Step-by-Step How to Make a Crystal Radio video: http://youtu.be/VqdcU9ULAlA Make a Crystal Radio Coil with Taps video: http://youtu.be/Gi9EmhrcfIg How a Crystal Radio Works video: http://youtu.be/0-PParSmwtE For more about crystal earphones, visit: http://rimstar.org/equip/crystal_earphone_earpiece_for_crystal_radio.htm For more about crystal radios, visit: http://rimstar.org/equip/crystal_radios.htm To follow me on Twitter: https://twitter.com/#!/RimStarz - http://rimstar.org