Significant-frequency alternators on the variable-reluctance variety have been applied commercially to radio transmission in very low-frequency radio bands. These have been useful for transmitting Morse code and, experimentally, for transmitting voice and audio. Within the Alexanderson alternator, both the sphere winding and armature winding are stationary, and latest is induced https://recycled-plastic88641.bloguetechno.com/detailed-notes-on-alternator-parts-70552828