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The problem of producing extremely high magnetic fields is briefly reviewed in the light of modern technique. The design, performance, and application of a pulsed‐field system capable of more than 750 000 gauss at room temperature is described. The coil comprises a suitably supported, machined,...
This paper describes a wide‐band balun transformer which was developed for use with a 200‐Mc band‐width oscilloscope deflection amplifier. The balun has a band width extending from below 50 kc to above 500 Mc. Input impedance data and pulse responses are presented. One balun coil can be...
An empirical relation is presented that describes a boundary between no vacuum sparking and possible vacuum sparking. Metal electrodes and rf or dc voltages are used. The criterion applies to a range of surface gradient, voltage, gap, and frequency that extends over several orders of magnitude....
The effects of moisture on the electrical properties of ferrites indicate that the electrical characteristics are adversely affected. The problem concerning the methods for the prevention of moisture absorption by the ferrite element has been solved by coating the surface of the ferrite with a...
An apparatus is described for measuring linear compressibility of rods and tubes under hydrostatic pressures to 4000 kg∕cm 2 and temperatures to 260°C. The measurements are made by means of a linear‐differential transformer located on the outside of the nonmagnetic high‐pressure container....
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