the inclosed sending station had a length of 250 feet, and was circuit leads off, and is completed by a battery of wires will glow, depending on the oscillatory nature formed of four radiating phosphor-bronze wires, mak- glass plate condensers on either side of the tuning in- of the current. As the… … H. Adjustable Condenser. I. Tuning Coil. J. Battery. A. Auto-Transformer. B. Tuning Inductance Coil. C. Arc. ' D. Condenser. L. Thermo-Electric Detector. E. Transmitter. F and G. Resonance Tubes. Long-Distance Telephone Receiver With Thermo-Galvanometer Mr. A. Frederick Collins in His Laboratory,…
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