774 
A. 
Be 
Cc. 
De 
=-75- 
Sequence beam brightener, synchronizing 
contre] cams, and tachometer 
Capacitance bridge 
Master control 
Crater (timing) tube power 
0. 
Flexible drive shaft to rotating-drum 
camera 
Flexible drive shaft to control cams 
and tachometer 
Main drive shaft and gear housing 
Fig. 15. Master control panels, sequence brighteuer and firing control, crater-tube 
power, and capacitance bridge. 
