. Practical wireless telegraphy; a complete text book for students of radio communication . rotor, but theother travels at twice synchronous speed and therefore induces in the circuits of the statoran E. M. F. at a frequency of 30,000 cycles per second (and zero frequency) (N -|- N andN — N or 2N and 0). And since the circuit F, C-1, L-2 and C-2 is tuned to this frequency,current of considerable amplitude flows. Now the E. M. F. of 30,000 cycles, induced in the stator, induces in the rotor two fre-quencies, one of 45,000 cycles per second and another of 15,000 cycles (2n -f- N and 2N — N 272 P
. Practical wireless telegraphy; a complete text book for students of radio communication . rotor, but theother travels at twice synchronous speed and therefore induces in the circuits of the statoran E. M. F. at a frequency of 30,000 cycles per second (and zero frequency) (N -|- N andN — N or 2N and 0). And since the circuit F, C-1, L-2 and C-2 is tuned to this frequency,current of considerable amplitude flows. Now the E. M. F. of 30,000 cycles, induced in the stator, induces in the rotor two fre-quencies, one of 45,000 cycles per second and another of 15,000 cycles (2n -f- N and 2N — N 272 PRACTICAL WIRELESS TELEGRAPHY. or 3N and N). The current of 45,000 cycles flows through the condenser C-3, but thecurrent of 15,000 cycles can, by proper design of the circuits, be made to nearly neutralizethe former current of 15,000 cycles in the rotor. There remains, therefore, in the rotor, anE. M. F. at a frequency of 45,000 cycles per second which flows through the condenser C-3,and due to a well-defined resonant adjustment, a powerful current flows. DIRECTION OFCURRENTi CYCLE\. n=20,O0O~ OR30,000*^ n= 10,000 mm fci
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
