MEASUREMEx\TS AT TELEPHONIC FREQUENCIES. 



123 



given an interesting interpretation in terms of the equivalent T of 

 the network, with regard to terminals AB, CD. By generalization 

 from several well-known examples of equivalent T-s, LaCour^ dem- 

 onstrated that any a.-c. or d.-c. network can be replaced by a certain 

 equivalent T, in general dissymmetrical, so that this T, insofar as 

 regards conditions at A, B, C, D will be the exact equivalent of the 

 actual network. 



"L ^a' too 



9 00 I 100 ^ ^ 



J >- 



■70000097 J. 



097 jAm^ 9 233-53J8 o^m:. 



A o. 



gA/>VL /) 



JL 



Z293 • 753 a/urr^. /° 



0- 4'3'[ 9i% Z ^ fO'' iWu« 



efvm/ . oc ■mA.M^ 





id 



Fig. 15. Continuous-current network with its equivalent T and n. 



As a simple example, we may consider the continuous-current 

 plane network of Fig. 15. The resistances of the various elements 

 in ohms are marked thereon. Some of them are made infinite, in 



'' Bibliography, 7 and 7a. 



