A New Type of Ultra-Short-Wave Oscillator

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Abstract
A new oscillator for generating ultra-short waves, in which the conventional tank circuit is replaced by a portion of concentric transmission line, is described. Electrically, the tube structure forms an integral part of the transmission line. For this the quantity √C/L for the tube must be the same as for the rest of the line, C and L being capacity and inductance per unit length of the line. A comparison of the closed oscillating circuit with the "standing wave oscillator" shows distinct advantages of the latter in the region of ultra-short waves. The mode of connecting the load to the oscillator is discussed. Some of the oscillator characteristics are given for wavelengths of 5 and 3 meters with 15- and 12-kw output, respectively. Mention is made of a marked physiological effect of ultra-short-wave fields.

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