so.\fr. ciRcriT aspects or the transistor 



369 



germanium constitutes the lliinl clc tnxU', railed the base. How it works is 

 shown in a purely descriptive wa>- in I'i^. 2. One point, called the collector, 



Fig. 1— Cutaway view of transistor. 



EMITTER 



COLLECTOR 



Fig. 2- -Transistor mechanism. 



is a rectitier biased stiongly in the low-conducting direction. It therefore has 

 a rectifying barrier in the germanium near it, which causes the collector 

 impedance to be high. However, the collector can be influenced by the 



