75175: 1158n 

 TRANSFORMER 



(a) — 



BALANCING 

 NETWORK 



AAAr 



75 il 



:c; 



g 



L4 



TO GRID 

 (OR PLATE) 



^a 



TO BETA 

 CIRCUIT 



C, LOW SIDE PADDING CAPACITANCE 



C3 HIGH SIDE PADDING CAPACITANCE 



L4 PEAKING COIL 



C5 PEAKING CAPACITANCE 



1= 



^lEoYcn 



XN 



E^ EQUIVALENT GENERATOR, 



CIRCUIT VOLTAGE, Eq. 

 Rq 1158A. 



X CABLE OPEN 



Li,Ri MUTUAL INDUCTANCE, DISSIPATION OF TRANSFORMER. 



Ci LOW SIDE CAPACITY X 1/7^ 



La 



C3 



LEAKAGE, REFERRED TO HIGH SIDE OF TRANSFORMER. 



HIGH SIDE CAPACITY OF TRANSFORMER 

 (INCLUDING PADDING CONDENSER). 

 L4,C5 PEAKING ELEMENTS. 



IS ADMITTANCE OF CABLE 



Fig. 8 — Coupling Network Circuits, (a) Physical elements, (b) On-ground 

 equivalent circuit, adequate for gain and feedback computations in an amplifier 

 configuration employing on-ground coupling networks, (c) Off -ground equivalent 

 Circuit. 



893 



