Army Air Forces, Army airways communications systems training manual. Dated Sept 1943.. Includes diagrams of circuits and descriptions of functions. 83 pages. Also included 4 pages inc schematic of the Wilcox CW3D diversity receiver. $10.00 inc postage CONUS. Thanx Lloyd Please visit my web site http://www.lloydsdipsydumpster.com/ Lloyd Godsey KK7IZ 1315 N. Udall Circle Mesa, Az 85203 480-620-7145 (cell)