70 Years of Radio Tubes and Valves

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 John W. Stokes
70 years of Radio Tubes and valves. 2nd Ed.
Chandler: Sonoran Publishing, 1997.
A historical view of the evolution of electron tubes both in the US and in Europe. No data sheets but a lot of nice pictures.
ISBN 0-9115726-0-0

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Want to buy it ? Contact Sonoran Publishing.