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 7
... motion of the ether results in waves which spread out from their source in enlarging circles . Wireless telegraphy , as it is practiced to - day , is based upon the fact that a system of wires or circuits , through which high frequency ...
... motion of the ether results in waves which spread out from their source in enlarging circles . Wireless telegraphy , as it is practiced to - day , is based upon the fact that a system of wires or circuits , through which high frequency ...
Сторінка 11
... motion of the diaphragm which imparts its mo- tion to the surrounding air , the result being sound waves audible to the ear . By varying the periods during which the key is pressed and the oscillations are being produced , according to ...
... motion of the diaphragm which imparts its mo- tion to the surrounding air , the result being sound waves audible to the ear . By varying the periods during which the key is pressed and the oscillations are being produced , according to ...
Сторінка 53
... motion corresponding to the electrical waves supplied to the coil and it imparts motion to the surrounding air , the result being sound . It might reasonably be asked why a telephone receiver could not be directly connected to the ...
... motion corresponding to the electrical waves supplied to the coil and it imparts motion to the surrounding air , the result being sound . It might reasonably be asked why a telephone receiver could not be directly connected to the ...
Сторінка 55
... motion of the diaphragm with consequent sound waves audible to the ear . WATER LEVEL p ' OVER FLOW FIG . 68. - Diagram drawing analogy between rectifying action of a detector and a pump . The accompanying sketches and the following ...
... motion of the diaphragm with consequent sound waves audible to the ear . WATER LEVEL p ' OVER FLOW FIG . 68. - Diagram drawing analogy between rectifying action of a detector and a pump . The accompanying sketches and the following ...
Сторінка 61
... motion it has already acquired . We all know how a child sitting in a swing may be made to swing back and forth by giving a succession of little impulses properly timed . The small pushes are superimposed on one another , the result ...
... motion it has already acquired . We all know how a child sitting in a swing may be made to swing back and forth by giving a succession of little impulses properly timed . The small pushes are superimposed on one another , the result ...
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50 cents A. A. HOUGHTON adjustable alternating current amateur appliances arranged battery BINDING POST boilers chapters CHART circuit coal coil of wire COMPOUND LOCOMOTIVES connected consists construction contains coupled helix detail detector devices diagram diaphragm direct current discharge drawings dynamos Edition electric waves electrodes engravings equipment ether explained flow fully illustrated gas engine Gasoline heating high frequency oscillations included induction coil instruments insulated Lathes Leyden jar Locomotive machine magnetic field manufacture mechanical messages metal methods modern molds motion motor O'CONOR SLOANE operation pass pipes plumbing potentiometer practical treatise Price primary produced pumps radiate railroad receiving apparatus Rubber secondary selenium showing signals slide SLIDER sound waves spark gap speech steam engine steel telephone receiver telephone transmitter tion transmitting tuning coil turbines types Valve Gear variable condenser vibrations Walschaert Valve Gear wireless station wireless telegraphy wireless telephone