. Some experiments with coupled high-frequency circuits . <,;, ), <:i;]!i»ii iniiwii .< ir; t lifilll iHlilli^iMihl! ^^iiijlik^H;;: mu. WASHINGTON GOVERNMENT PRINTING OFFICE 1911 SOME EXPERIMENTS WITH COUPLED HIGHFREQUENCY CIRCUITS By L. W. Austin 1. INTRODUCTION Very little experimental data has been given on the relativemagnitudes of the currents in coupled circuits under differentconditions of coupling. Fischer ^ has shown that, when a cir-cuit containing a spark gap is coupled to a second oscillatorycircuit and this second circuit in turn very loosely coupled to athird circuit
. Some experiments with coupled high-frequency circuits . <,;, ), <:i;]!i»ii iniiwii .< ir; t lifilll iHlilli^iMihl! ^^iiijlik^H;;: mu. WASHINGTON GOVERNMENT PRINTING OFFICE 1911 SOME EXPERIMENTS WITH COUPLED HIGHFREQUENCY CIRCUITS By L. W. Austin 1. INTRODUCTION Very little experimental data has been given on the relativemagnitudes of the currents in coupled circuits under differentconditions of coupling. Fischer ^ has shown that, when a cir-cuit containing a spark gap is coupled to a second oscillatorycircuit and this second circuit in turn very loosely coupled to athird circuit containing a thermoelement, the current in thethird circuit shows a well-marked maximum for a given degree ofcoupling between the first and second circuits, the current inthe third circuit decreasing when the coupling between the firstand second is either increased or decreased from this most favor-able value. A very remarkable fact brought out in this paper isthat for small degrees of damping the best results are to beobtained when the mutual inductance between the first and sec-ond circuits is extremely small. The reason for this behaviorsome73013141911158158unse
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