94 



HANDBOOK OF MAGNETIC COMPASS 



(2) It should be proportional to the magnetic effects of the 

 degaussing coil. 



(3) It should be preferably from 6 to 10 volts. 



(4) It must be such that fault conditions or fuse failures on 

 any one of parallel degaussing coil circuits will not destroy its 

 proportionality to the magnetic effects of the degaussing coil. 



Figure 51 illustrates such voltage connections to different type de- 

 gaussing installations. 



TYPE "G" 



M 



F 



M M nnrfffn 



"M"C0IL TO'rcOIL \J \J \) \J 



"M" DG COIL 



SHIPS OR 

 D.6. GENERATOR 



ILLUSTRATION OF"M" COIL SUPPLY 



Figure 48. 



U3S. 



DEGAUSSING 



COMPASS COMPENSATING COILS CTYPE'S') 



C0MPENSATIh4G FOR MAND F COILS 

 ACTUAL CONNECTIONS^ 



BY- 



NAVAL DISTRICT 



(M,F) 



