TRAVELING WAVE TUBE FOR 6,000-MC RADIO RELAY 1329 



z 

 tr 



LU 



5 



o 



Q. 



CL 



32.5 



30.0 



27.5 



25.0 



22.5 



20.0 



17.5 



15.0 



12.5 



10.0 



7.5 



5.0 



2.5 





 2800 



2700 



LU 



O 2600 

 > 2500 



liJ 2400 



I 



3 



o 



2300 



2200 



10 15 20 25 30 35 40 45 50 55 60 65 70 



BEAM CURRENT IN MILLIAMPERES 



Fig. 35 — Maximum power output and heli.x voltage as functions of beam cur- 

 rent. Curves are shown for before and after fading, and for tlie helix voltage ad- 

 justed for the ma.ximum gain at low-level and for maximum output. 



