The Galena Century Radio (GCR) Crystal Detector Dual System AW comes completely assembled and measures 5.75”D x 6.25”W x 3.5”H. For display or integration into your own Crystal Radio setup. The GCR Crystal Detector Dual System provides an attractive and convenient means for switching your crystal radio between Galena Crystal and Germanium Diode operation. The bottom panel can be opened and wiring can be adjusted to meet your particular needs. The GCR Crystal Detector Dual System AW contains; a Control Panel with American Walnut frame; Brass Binding Posts (Package of 6) – Kit; Brass Diode/Crystal Switch – Kit; Brass Crystal Detector Arm Structure – Kit; a Galena Crystal mounted in a Brass Cup; wiring; and all Brass fastening hardware.