Ballard, William Cyrus, Jr · New York [etc.] McGraw-Hill company, inc. · leaf 17
£., Wire Telephone =H1=^ Line Wires ReceiverMicroplione Antennae PeceiWngSef: 3/A?Ay Moc/ulatt>rOscillator \ -<^ ,^^, Bcdkr)sci I … = Ground.FiQ. 1.—Graphical comparison of wire andjadio telephone systems. which two carbon discs are situated and insulated from oneanother. One disc is stationary and the other is attachedto the diaphragm and free to move with it. The spacebetween the two discs is loosely packed with carbon…
Radio
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
