Theses and Dissertations
Now showing items 1-2 of 2
Chromatic and spherical aberration in electrostatic lenses
High resolution cathode-ray display devices demand focusing systems that reduce total aberration to the lowest possible value. Magnetic focusing systems have proven superior to electrostatic systems with respect to being ...
Power amplification with gate turn-off controlled rectifiers
With ever larger amounts of power being required by present day active sonars, studies are being made towards improving the efficiency of the power train. A gain in efficiency is possible if non-linear switching type ...