CRYSTAL HOUSING 

 AND TUNING STUB 



CONVERTER 

 ASSEMBLY- 



I— AMPLIFIEF? 



MAIN WAVE GUIDE- 



ATR BOX 

 TUNING PLUC- 



'-^^^ 1— f^AGNETRON 



' — ATR BOX 



Fig. 12 — A general view of a wave guide system employing a 7243 tube in the 

 TR box and a second 724B tube in the ATR 



/-TUNING 

 |WA STL- 



i^b^ E \'^;,^ 



TUNING 

 -STUB 



Fig. 13 — The main wave guide of Fig. 12 removed from the rest of the equipment 



60 



