CHAPTER III. THE NATURAL PERIOD OF THE TRANSMISSION LINE. 320 

27. The oscillation of the transmission line as condenser. 320 

28. The conditions of free oscillation. 321 

29. Circuit open at one end, grounded at other end. 322 

30. Quarter-wave oscillation of transmission line. 323 

31. Frequencies of line discharges, and complex discharge 

wave. 327 

32. Example of discharge of line of constant voltage and zero 

current. 329 

33. Example of short-circuit oscillation of line. 331 

34. Circuit grounded at both ends : Half-wave oscillation. 333 

35. The even harmonics of the half-wave oscillation. 334 

36. Circuit open at both ends. 335 

37. Circuit closed upon itself: Full-wave oscillation. 336 

38. Wave shape and frequency of oscillation. 338 

39. Time decrement of oscillation, and energy transfer be- 

tween sections of complex oscillating circuit. 339 


xx CONTENTS. 

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