The investigation that is reported in this thesis was undertaken in an attempt to obtain more information concerning Barkhausen-Kurz oscillations. For the production of these, a specially designed, three-electrode vacuum tube was built;The study was mainly concerned with determining the effect of grid and plate potentials, emission current, and external circuit constants on the wave-length and intensity of oscillations;From the experimental results, it was found that: (1) Increased grid potentials caused the wave-length to be shortened. (2) Increased negative values of plate potential were attended by reductions in the wave-length. (3) A rather abrupt change to longer wave-lengths occurred when a positive potential of a few volts was applied to the plate. (4) Increased emission currents effected a small decrease in wave-length. (5) Rather large changes in the constants of the external oscillatory circuit produced only slight changes in the wave-length. (6) Increased emission current caused the intensity of the oscillations to become greater. (7) Alterations of the constants of the external circuit produced changes in the oscillation intensity;As a part of the investigation, beats which were obtained between Barkhausen-Kurz oscillations and those produced by a normal continuous wave oscillator were studied.
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