. Practical wireless telegraphy; a complete text book for students of radio communication . 286 PRACTICAL WIRELESS TELEGRAPHY. The tone wheel is frequently termed a frequency transformer because it converts me-chanically the oscillations of radio-frequency into current of audio-frequency. It is superiorto the ordinary tikker, first, because it produces a musical pitch so highly desirable foraurul reception, and, second, it converts more energy of the incoming oscillations into usefulsound than does the tikker. A photograph of the Goldschmidt tone wheel appears in Fig. 299. The commutator disco
. Practical wireless telegraphy; a complete text book for students of radio communication . 286 PRACTICAL WIRELESS TELEGRAPHY. The tone wheel is frequently termed a frequency transformer because it converts me-chanically the oscillations of radio-frequency into current of audio-frequency. It is superiorto the ordinary tikker, first, because it produces a musical pitch so highly desirable foraurul reception, and, second, it converts more energy of the incoming oscillations into usefulsound than does the tikker. A photograph of the Goldschmidt tone wheel appears in Fig. 299. The commutator discof this detector is driven at speeds approximating 4,000 revolutions per Fig. 299—The Tone Wheel Installed at the Tuckerton Station. 228. Marconi System for Reception of Undamped Oscillations.—Thediagram of connections. Fig. 300, covers the systems for the reception of un-damped oscillations, developed by Signor Marconi and H. J. Round.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
