By Alan Douglas Tube Testers and Classic Electronic Test Gear provides an overview of pre-1970 (the vacuum tube era) radio test equipment. It begins with an extensive discussion of tube testing and use of testers, and progresses into curve tracing. The different types of testers are compared; emission, dynamic and mutual conductance, and testers from 23 different manufacturers are tabulated and pictured. The book also covers VOMs, VTVMs, Q Meters, Grid Dip Meters, Capacitance and Inductance Bridges, Signal Generators, Signal Tracers and Oscilloscopes. It includes brief company histories of the manufacturers. Useful for radio collectors, vacuum tube enthusiastes and historians. Over 300 photos and illustrations. ISBN 1-886606-14-5 (172 pages, 8 1/2 X 11" softcover) $25.95 SONORAN PUBLISHING - Email: snrnpub@aol.com PHONE (480) 961-5176 FAX (480) 961-5256