Raytheon Radio Tube Data and Substitution Chart

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