By Philip N. Anderson A practical how-to" book of crystal radio construction. Contains a simple oat box projectformulas for coil inductance and coil Qa procedure for measuring coil capacitance and theory for L-C circuit matching. 130 pages0.5 lb5.25" x 8.25".

Re-print of the original basic electricity and electronics course from the US Navy. Has chapters on mathematical principals (everyone’s favorite!), to elementary definitions and ohms law, to applications of vacuum tubes. Also has commonly used charts and tables. If you’re interested in electronics, but need to start at the beginning, this book is for you. Great WW II stuff; over 50 years old, but still pertinent information. 205 pages, 0.7 lbs, 6 x 9"

This reprint of a 1935 RCA publication shows tube complement, chassis layout and date of manufacture for thousands of radios produced by over 100 different manufacturers. It also contains a tube data chart and base diagrams for RCA receiving tubes. It is very useful for identifying unknown model numbers or determining which tubes belong in a set. 256 pages, 0.9 lb, 5 x 8.25"

By Phil Van Praag Finally, a comprehensive guide to the audio recorder, this book explains the mysteries and tracks the evolution of the audio recorder. Provides repair and restoration guidelines, buying tips, identification criteria and pricing guidelines. Covers over 125 brand names, with over 500 photos and illustrations. The definitive guide to vintage wire and tape recorders. 500 pages, 1.1 lbs, 5.35 x 8.25"