426 



KENNELLY, TAYLOR— PROPERTIES OF 



loop is greatly enlarged. By drawing the circumference of the 

 circle as it would appear in tHe absence of distortion, and marking 

 off thereon the computed positions of' the various observed fre- 



.D/'aphragm Velocity 



(normal ) at fK'e^onance, 

 3.66 cm/jec 



Depression Angle^ 73°36 



Motional Impedance 

 (normal ) ot /x'esonance, 

 //O ohm^. 



Max. Absorption 

 Impedance ^ ^^.5 ohms 



Telephone F?ecEivEf? B 

 Load at- Cen]rer,0.S75gm. 



Impedance Diagr/km 



SHOWING 



Construct/on of 



ABSOf?PTION Gf?aph 



fr'esistance -^'> -3° -20 -lo o 10 20 jo ^o so (,0 



Fig. 6. Distorted Motional-Impedance Circle. Distortion Nearly Central on 



Main Diameter. 



quencies, it was noticed that the chords, or vector differences, be- 

 tween the distorted and undistorted points gave rise to an approxi- 

 mate circular locus, when referred to the origin. This showed 



