Hertzian Wave Wireless Telegraphy
Hertzian Wave Wireless Telegraphy
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In our eReader you can find the full English version of the book. Read Hertzian Wave Wireless Telegraphy Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Hertzian Wave Wireless Telegraphy
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This is best achieved by the employment of a small alternator directly coupled to a continuous -current motor; or by providing the shaft of a continuous-current motor with two rings connected to two opposite portions of its armature, so that when con- tinuous current is supplied to the brushes pressing against the com- mutator, an alternating current can be drawn off from two other brushes touching the above-mentioned insulated rings.
The next element of importance in the transmitting arrangeme...nt is the spark gap. In the case of those transmitters employing an ordi- nary induction coil, the secondary spark, or the discharge of any con- denser connected to the secondary terminals can be taken between the brass balls about half an inch or one inch in diameter, with which the terminals of the secondary coil are usually furnished ; and it is gene- rally the custom to allow this spark discharge to take place in air at ordinary pressure. In the very early days of his work Mr. Marconi adopted the discharger devised by Professor Rhigi, in which the spark takes place between two brass balls placed in vaseline or other highly insulating oil.
What to read after Hertzian Wave Wireless Telegraphy?
You can find similar books in the "Read Also" column, or choose other free books by John Ambrose Fleming to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
This is best achieved by the employment of a small alternator directly coupled to a continuous -current motor; or by providing the shaft of a continuous-current motor with two rings connected to two opposite portions of its armature, so that when con- tinuous current is supplied to the brushes pressing against the com- mutator, an alternating current can be drawn off from two other brushes touching the above-mentioned insulated rings.
The next element of importance in the transmitting arrangeme...nt is the spark gap. In the case of those transmitters employing an ordi- nary induction coil, the secondary spark, or the discharge of any con- denser connected to the secondary terminals can be taken between the brass balls about half an inch or one inch in diameter, with which the terminals of the secondary coil are usually furnished ; and it is gene- rally the custom to allow this spark discharge to take place in air at ordinary pressure. In the very early days of his work Mr. Marconi adopted the discharger devised by Professor Rhigi, in which the spark takes place between two brass balls placed in vaseline or other highly insulating oil.
What to read after Hertzian Wave Wireless Telegraphy?
You can find similar books in the "Read Also" column, or choose other free books by John Ambrose Fleming to read onlineMoreLess
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