. Practical wireless telegraphy; a complete text book for students of radio communication . n that if the note is clear and the secondary circuit is thrown^ out ofresonance, less energy will be withdrawn from the closed oscillation circuit, which willincrease the voltage across the gap. The pitch of the note will therefore be destroyed. The rule to be followed is, tune the set first; afterwards adjust the gaps and voltage untilthe note is clear and the wattmeter indicates 2 kilowatts. The synchronous rotary gap is adjusted for a high pitched note by the small brass rodR and knob, Fig. 116, whi


. Practical wireless telegraphy; a complete text book for students of radio communication . n that if the note is clear and the secondary circuit is thrown^ out ofresonance, less energy will be withdrawn from the closed oscillation circuit, which willincrease the voltage across the gap. The pitch of the note will therefore be destroyed. The rule to be followed is, tune the set first; afterwards adjust the gaps and voltage untilthe note is clear and the wattmeter indicates 2 kilowatts. The synchronous rotary gap is adjusted for a high pitched note by the small brass rodR and knob, Fig. 116, which moves the muffling drum carrying the stationary spark elec-trodes through a 25-degree arc. It is also essential that the A. C. voltage be carefully regulated. But the operator shouldtake care that the reading of the wattmeter in no case exceeds 2 K. W. Also he shouldadjust the length of the discharge gap until the stationary electrodes and the rotary elec-trodes are separated no more than .01 of an inch. The complete process will perhaps beclearer from the detailed drawing, Fig.


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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917