Wireless Telegraphy and Telephony Simply Explained: A Practical Treatise Embracing Complete and Detailed Explanations of the Theory and Practice of Modern Radio Apparatus and Its Present Day Applications, Together with a Chapter on the Possibilities of Its Future DevelopmentNorman W. Henley Publishing Company, 1912 - 154 стор. |
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Сторінка viii
... Sound Waves ; The Nature of Sound ; Speech ; The Larynx and Vocal Chords ; The Structure of Speech ; Manometric Flames 105-113 CHAPTER VIII The Telephone ; The Telephone Transmitter ; The Telephone Receiver ; The Photophone ; Selenium ...
... Sound Waves ; The Nature of Sound ; Speech ; The Larynx and Vocal Chords ; The Structure of Speech ; Manometric Flames 105-113 CHAPTER VIII The Telephone ; The Telephone Transmitter ; The Telephone Receiver ; The Photophone ; Selenium ...
Сторінка xv
... sound waves of the voice are impressed upon undamped oscillations 130 Fig . 145. - Arrangement of the speaking arc 131 Fig . 146. - Diagram showing how a wireless telephone trans- mitting system is arranged . 131 Fig . 147. - Poulsen ...
... sound waves of the voice are impressed upon undamped oscillations 130 Fig . 145. - Arrangement of the speaking arc 131 Fig . 146. - Diagram showing how a wireless telephone trans- mitting system is arranged . 131 Fig . 147. - Poulsen ...
Сторінка 10
... waves have the power of exciting oscillations in a conductor on which they ... sound . The most prominent type of detector in use to - day is a crystal of ... waves from the transmitting sta- tion strike the aerial of the receiving ...
... waves have the power of exciting oscillations in a conductor on which they ... sound . The most prominent type of detector in use to - day is a crystal of ... waves from the transmitting sta- tion strike the aerial of the receiving ...
Сторінка 11
... sound waves audible to the ear . By varying the periods during which the key is pressed and the oscillations are being produced , according to a prearranged code , the sounds in the receiver may be made to assume an intelligible meaning ...
... sound waves audible to the ear . By varying the periods during which the key is pressed and the oscillations are being produced , according to a prearranged code , the sounds in the receiver may be made to assume an intelligible meaning ...
Сторінка 16
... sound in the telephone receivers , and sometimes seriously interfere with a message . In fact , it is possible for a ... waves , which impress the ear as the sound called thunder . Wireless stations belonging to the United States navy ...
... sound in the telephone receivers , and sometimes seriously interfere with a message . In fact , it is possible for a ... waves , which impress the ear as the sound called thunder . Wireless stations belonging to the United States navy ...
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