By Robert Millard.
This book contains hard-to-find electrical data on nearly 200 tube types that pre-date the RMA (Radio Manufacturers Association) standardized numbering system, which was initiated in 1934. It includes basing diagrams, photos of tubes and boxes and brief developmental histories of each. Western Electric, DeForest, Arturus, Cunningham, GE, Westinghouse, Philco, Speed, Ken-Rad, Sparton, Cardon, Daven, McCullough and others. ©2001 Sonoran Publishing 196 pages. List $25.95. Click here to view back cover.