388 



THE BELL SYSTEM TECHNICAL JOURNAL, MARCH 1954 



Table X — Tilt Study Data — Card Drop Time in Milliseconds — 

 Card Support Bars Out 



bars out was 26.7 ms, it can be predicted that the limits for the dropping 

 time for a single card at the onset of life of a card translator will be 1 and 

 52 ms. It is to be noted that while the upper limits in both these estimates 

 are reasonably close, the lower limits are quite different. This is to be 

 expected since the card support bars may delay the dropping of a card 

 and thus restrict operations that might be fast. 



Tilt Study Analysis 



A fundamental assumption underlying any comparison is that the 

 compared elements have been measured with the same precision. Scru- 



