A study of wireless telegraphy and wireless telephony (1915)
Eleazarian, Aram Movses · leaf 114
sing them to affect a speaking telephone. To produce the persistent train of waves of high frequencynecessary, several methods are used, such as: 1) The singing arc method (see p /9 ) 2) The mercury arc method. 3) The high frequency alternator method, etc.The mercury arc method is shown in Fig. 39.… … Fig.dd Vreelands tig.-fire Oscillator. 54. electrode to help stare this arc in the chamber. /.hen this arcis established, it will be seen to divide into two branches--one between A and K, the other between B and K. The resistanceR and the choke coils L and are used to steady the two arcs,between…
Telephone systems · Radio · Telegraph, Wireless · Theses
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