Peculiar behavior of circuits under ap-parently ideal conditions may often be traced to hidden causes; engineman's off-duty report may often contain clue to cause of failure; interference by foreign currents; importance of calibration under proper conditions.
Train control maintenance experience
Ry. Elec. Engr
Railway Electrical Engineer ; 19 , n 9
1928
5 pages
12 Figs.
Aufsatz (Zeitschrift)
Englisch
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