Electricity experimentally and practically applied; a book for the beginner and for the practical man, principles, experiments, practical applications and problems (1910)
Ashe, Sydney Whitmore · New York, D. Van Nostrand company · leaf 80
Fig. 96. — Wireless Receiving Apparatus. … 58 EXPERIMENTAL ELECTRICITY shown which consists of two small pellets inclosed in atube containing nickel fiHngs. Ordinarily the circuit shunt-ing the coherer is interrupted, but whena wave is sent out from the sending sta-tions, the particles of nickel stick to-gether, closing the shunt circuit.…
Electricity · Electrical engineering
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