Raytheon was one of the largest manufacturer of vacuum tubes for both military and civilian applications. This was originally published in 1945 and this is a high quality reprint of the original. Inside is tube data of all Raytheon tubes including electrical characteristics, basing connections, style and size of base, style and size of bulb as well as recommended substitutions. Also included are two articles on making short wave receivers 41 pages, softcover, 0.35 lbs, 8.5 x 11
Volume III - RCA through Zenith By Alan Douglas This monumental 3 volume work offers an outline history for each of the major radio manufacturers of the 1920’s. It features the company principals and their factories, the financial ups and downs of the industry, and hundreds of pictures of radios produced up to 1930. Volume 3 covers RCA through Zenith. Over 250 pages each volume. 2.0 lbs.
Edited By Robert P Murray This book details the contributions, inventors and companies that brought radio to the airwaves of Canada. A great read about the history of Canadian radio. 160 pages, 1.2 lbs,0.5 x 8.8 x 11.2 inches