. The Bell System technical journal . from past practice which has resulted inthe existing system of scattered frequency assignments. It is to behoped that the obvious difficulties in rearranging frequency assign-ments will not prove so unyielding as to preclude putting new engineer-ing developments into service. A Negative-Grid Triode Oscillator and Amplifier for Ultra-High Frequencies * By A. L. SAMUEL ^ I ^HE author describes three negative-grid triodes of unusual designA which operate both as oscillators and as amplifiers at ultra-highfrequencies. The power output of the smallest tube as a
. The Bell System technical journal . from past practice which has resulted inthe existing system of scattered frequency assignments. It is to behoped that the obvious difficulties in rearranging frequency assign-ments will not prove so unyielding as to preclude putting new engineer-ing developments into service. A Negative-Grid Triode Oscillator and Amplifier for Ultra-High Frequencies * By A. L. SAMUEL ^ I ^HE author describes three negative-grid triodes of unusual designA which operate both as oscillators and as amplifiers at ultra-highfrequencies. The power output of the smallest tube as an oscillator at1500 megacycles is 2 watts, and is still capable of an output of 1 watt at1700 megacycles with an oscillation limit of 1870 megacycles cor-responding to a wave-length of 16 centimeters. This tube also offerspossibilities as an amplifier at frequencies as high as 1000 capabilities of the negative-grid triode are notable since this de-vice has appeared to lag behind the magnetron as an oscillator at fre-.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
