Power vacuum tubes handbook af Whitaker, Jerry C.

Also available online for University of the Philippines Diliman College of Engineering via CRCnetBASE. Click here to access
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Philco handbook of tubes and semiconductors

Electronic tubes, circuits and devices af Blevins, Lewis G.

Basic vacuum tubes and their uses af Rider, John Francis, 1900-

Noise af Van der Ziel, Aldert

Physics and applications of secondary electron emission. af Bruining, H.

Vacuum tubes af Spangenberg, Karl Ralph

Fundamental electronics and vacuum tubes af Albert, Arthur Lemuel, 1899-

Electronic control of resistance welding af Chute, George M.

Electric motors in industry af Shoults, David Roy