^24 



TSK BELL SYSTEM TECHNICAL JOURNAL, OCTOBER 1951 



T = 1430" K V = 

 3 MINUTES 



V = 8500 ^ L = 30 /£A 



2/5 SECOND 



Ba COIL 2.4 AMPERES 

 3 MINUTES 



V= 3150 ^ L= 50/tA 



2/5 SECOND 



Ba COIL 



2.4 AMPERES 

 1 MINUTE 



V=5000^ L=70/tA 



2/5 SECOND 



Ba COIL 2.4 AMPERES 

 5 MINUTES 



V=3000^ L=50>M.A 



2/5 SECOND 



Ba COIL 2.4 AMPERES 

 2 MINUTES 



V=3370^ L = 50mA 



2/5 SECOND 



Ba COIL 2.4 AMPERES 

 7 MINUTES 



V = 3100 _ L = 50 iCtA 



2/5 SECOND 



Fig. 7 — Patterns for successively increasing amounts of Ba on W with enlarged planes. 



