Proceedings of the United States Naval Institute, Том 46The Institute, 1920 |
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Страница 1059
... supply potential with consequent decrease in the over all efficiency . In addition to the use of the blow - out magnets , two other agencies are employed to assist in the deionization of the arc . One is effective cooling , and the ...
... supply potential with consequent decrease in the over all efficiency . In addition to the use of the blow - out magnets , two other agencies are employed to assist in the deionization of the arc . One is effective cooling , and the ...
Страница 1060
... supply . FIG . 8 . To give some idea of the dimensions of the electrodes , it may be stated that while the diameter of the electrodes in the average commercial arc light is about one - half inch , that of the cathode in a 500 kw . radio ...
... supply . FIG . 8 . To give some idea of the dimensions of the electrodes , it may be stated that while the diameter of the electrodes in the average commercial arc light is about one - half inch , that of the cathode in a 500 kw . radio ...
Страница 1061
... supply in the act of signaling since the arc electrodes must be closed to strike the arc each time the circuit is opened . ( It is true that the arc flame is extinguished at each cycle of the antenna current , but these THE POULSEN ARC ...
... supply in the act of signaling since the arc electrodes must be closed to strike the arc each time the circuit is opened . ( It is true that the arc flame is extinguished at each cycle of the antenna current , but these THE POULSEN ARC ...
Страница 1066
... supply to and from anode . D - Anode support . E - Anode insulating plate . F - Lead to antenna inductance . G - Tank containing field coils , insulated and cooled by circulating oil supply . H - Arc chamber . I - Door to anode holder ...
... supply to and from anode . D - Anode support . E - Anode insulating plate . F - Lead to antenna inductance . G - Tank containing field coils , insulated and cooled by circulating oil supply . H - Arc chamber . I - Door to anode holder ...
Страница 1070
... supply current . Thus with a 500 - cycle transmitter , trains of waves are radiated at the rate of 1000 per second . To make signals from a Poulsen arc readable at a receiver designed for spark reception , it is necessary to break up ...
... supply current . Thus with a 500 - cycle transmitter , trains of waves are radiated at the rate of 1000 per second . To make signals from a Poulsen arc readable at a receiver designed for spark reception , it is necessary to break up ...
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