16 THE BELL SYSTEM TECHNICAL JOURNAL, JANUARY 1954 



Fig. 10 — Photo of timing setup. 



members either touch or separate. It is timed by a 100-kc oscillator 

 allowing measurements to be made at intervals of 10 millionths of a 

 second. It is in constant use for the every-day measurement of relay 

 timing. 



The simple timing measurements just described afford data on the 



