Radiography and the 'X' rays in practice and theory : with constructional manipulatory details (1898)
Bottone, Selimo Romeo · London ; New York : Whittaker & Co. · leaf 61
he best condenser doesnot entirely do away with, that the platinum contactsthemselves should be very heavy, and if possiblesurrounded by a considerable mass of good conductingmetal. For this reason the platinum points themselvesshould be of not less than No. 14 B.AV.G.; and in thecase of the… … Fio. 14.—Dori.LE SpkingContact-Bkeakek. THE INDUCTION COIL 49 with these large coils is the commutator^ or currentreverser, which enables us at will to cut off or reversethe direction of the current sent from the battery throughthe primary of the coil, and consequently to stop orreverse the…
Electric radiation · X-rays · Radiography
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