t. crest and a wave-valley, comprises a wave-length. The waves of definite length are produced at the transmit- For those waves which are exactly four times as length of the freely-vibrating wire must be one-quarter ting station. Wireless telegraphy is essentially the long as the receiving-wire,… … of the type used in most systems of wire- to the length of the wire employed and to the size of the condenser. By employ- less telegraphy. Evidently the coherer A COMPLETE APPARATUS SHOWING THE MULTIPLIER, INTERRUPTER, should be connected with that portion ing coils, C D, of various forms the…
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