ELECTRICAL WAVE FILTERS EMPLOYING CRYSTALS 229 



FILTER 

 NO. 



.Al 



FREQUENCY 



FREQUENCY co 



M 



Uy 



KmJ 



^^ 



''1/ i 



a/ 



NOTE - IN COLUMN D, DOTTED LINES INDICATE REACTIVE IMPEDANCE 

 SOLID LINES INDICATE RESISTIVE IMPEDANCE 



Fig. 5 — Single band lattice filters employing transformers and crystals. 



