404 



REGULATORY CIRCUITS 



Ideal Transformer 



Electronic 

 Admittance 



R S C_L L 



Load 

 Admittance 



Output 

 Voltage 



Fig. 8-6 Equivalent Circuit of a Magnetron. 



rotation because of imperfect rotary joints. The nature of tliese transient 

 variations governs the time-response requirements for the AFC. 



The Rieke diagram is a fundamental performance characteristic of the 

 magnetron which describes the dependence of oscillator power output and 

 frequency on the load. A typical Rieke diagram is shown in Fig. 8-7. 



Fig. 8-7 Possible Operating Condition of a 4J50 Magnetron in a Typical Airborne 

 Radar Set (Rieke Diagram). 



