Power vacuum tubes handbook von 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 von Blevins, Lewis G.

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

Noise von Van der Ziel, Aldert

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

Vacuum tubes von Spangenberg, Karl Ralph

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

Electronic control of resistance welding von Chute, George M.

Electric motors in industry von Shoults, David Roy