. The Bell System technical journal . (a) FILAMENTARY TRANSISTOR EMITTER,f o Rb3ASE , b 0—\f\J\, VOLTAGEGENERATOR. (b) EQUIVALENT CIRCUIT COLLECTOR,C Lc,Vc Fig. 9—Filamentary transistor and equivalent circuit. unit a dumbbell appearance, decrease the problem of making contact to theunit. The large area at the left side serves the additional purpose of reducingunwanted hole emission from the metal electrode and affords an opportunityfor any emitted holes to recombine before they enter the narrow part ofthe unit. The theory of this transistor is relatively simple and most of the featureswe shall
. The Bell System technical journal . (a) FILAMENTARY TRANSISTOR EMITTER,f o Rb3ASE , b 0—\f\J\, VOLTAGEGENERATOR. (b) EQUIVALENT CIRCUIT COLLECTOR,C Lc,Vc Fig. 9—Filamentary transistor and equivalent circuit. unit a dumbbell appearance, decrease the problem of making contact to theunit. The large area at the left side serves the additional purpose of reducingunwanted hole emission from the metal electrode and affords an opportunityfor any emitted holes to recombine before they enter the narrow part ofthe unit. The theory of this transistor is relatively simple and most of the featureswe shall discuss in connection with it have counterj)arts in the theory of thetype-A transistor. We shall discuss the case for which the injected currentis a small fraction of the total current in the filament. Under these conditionswe can use a simple linear theory. We shall show that the behavior of thetransistor can be gi\-en for small a-c signals 1)\- the equivalent circuit in i.\.n-:i r/\ i\ (,i:i<\i i\ii \f m,\ Figure 0(1)I, whidi shows the rurrciit and xoltagc relationships in a formequiva
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
