536 



ELECTRICAL EQUIPMENT 



Instruments 



Meters 



Pot. and Synchr. Receptacles, 

 Control Switches & Lamj 

 Mimic Buses. 



Removable 

 Grill Panels 



FIG. 338. A Simple Type of Combination Control Board and Instrument 

 Board Showing the Locations Best Suited for the Various Pieces of 

 Apparatus. 



Instruments 



T. A. Regulators 



Engine Signals 



Pot. and Synchr. Receptacles 

 Control Switches & Lami 

 Mimic Buses. 



Fid Rheostat 

 Control 



Meters 



Graphic 

 Instruments 



Relays 



Testing Links 

 and Switches 

 for Relay s and 



Instruments 



FIG. 339. An Enlargement on the Arrangement Shown in Fig. 338, which 

 Meets the Demand of Greater Working Surface by the Addition of 

 Rear Panels. 



