Vacuum tubes
Spangenberg, Karl R.
Vacuum tubes by Karl R. Spangenberg. - New York McGraw-Hill 1948 - xvii, 860p. - McGraw-Hill Electrical and Electronic Engineering Series .
621.381512 / N481;4
Vacuum tubes by Karl R. Spangenberg. - New York McGraw-Hill 1948 - xvii, 860p. - McGraw-Hill Electrical and Electronic Engineering Series .
621.381512 / N481;4