. The Bell System technical journal . ible as compared to the resistance ofthe coil itself, and equation ((>) thus gives us the very interesting ///(,// \Cy 185 llu- in,i\inuini . (il>t,iiiKil>U willi .1tiiniHl liriiiit aniplilicr is to llio ratio oj the inductivereactance to the Siiiiare root of the resistance. In the case of an ordinaryselective rircnit siuh as a tuned loop antenna the output voltagedevelojxtl is pro|)ortional to the ratio of the inthictive reactance tothe first pcnver of the resistance. This do
. The Bell System technical journal . ible as compared to the resistance ofthe coil itself, and equation ((>) thus gives us the very interesting ///(,// \Cy 185 llu- in,i\inuini . (il>t,iiiKil>U willi .1tiiniHl liriiiit aniplilicr is to llio ratio oj the inductivereactance to the Siiiiare root of the resistance. In the case of an ordinaryselective rircnit siuh as a tuned loop antenna the output voltagedevelojxtl is pro|)ortional to the ratio of the inthictive reactance tothe first pcnver of the resistance. This does not mean that low resist-ance is less desirable in ainplilier coils than in ordinary tuned circuitsbut it does mean that tiie penally exacted 1)\ increasim; ilu resist-ance is not as great. In order to test the formulas given 1)\- eciuations (.)) and (0) aseries of experiments have been carried out. For measurements of the maximum amplification of a tuned circuitami)litier a circuit as shown in Fig. 3 was used. The grid of the am-. jj_HIH-lT • [[hj^ Fig. 3—Method of Measurement of Tuned .Amplifier
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
