SPANGENBERG, Karl R.
Vacuum Tubes /[by] Karl R. Spangenberg - New york Mcgraw-Hill book co. 1948 - xvii, 860 p.
Includes appendixes and index
621.38151 / SPA
Vacuum Tubes /[by] Karl R. Spangenberg - New york Mcgraw-Hill book co. 1948 - xvii, 860 p.
Includes appendixes and index
621.38151 / SPA