Crystal Radio

A crystal radio receiver, also called a crystal set, is a simple radio receiver, popular in the early days of radio. It uses only the power of the received radio signal to produce sound, needing no external power. It is named for its most important component, a crystal detector, originally made from a piece of crystalline mineral such as galena.[1] This component is now called a diode. Need 1) Cotted Copper Wire 1.5 MM 12 Meters 2) 1 inch Diamer 7 inches Longth PVC Pipe 3) Blade,Pencil /Diode 4) Magnatic Speaker /Applifier Speaker 5) Antenna Connection for MW signals rx 6) Ground Earth connection