Induction coils : how to make, use, and repair them including Ruhmkorff, Tesla, and medical coils, Roentgen radiography, wireless telegraphy, and practical information on primary and secondary battery (1901)
Schneider, Norman H. (Norman Hugh) · New York : Spon & Chamberlain ; London : E. & F.N. Spon · leaf 105
ltsbeing desirable. Its rapidity of action variesup to and at times exceeding 400Q interrup-tions per second. A Wehnelt interruptercan be made as follows: Procure a glass jar/ holding about one quart or a little less, also 78 Contact Breakers. a cover for same C, a piece of sheet lead Llarge enough… … Fig. 23. in a gas flame, and bend an inch or less ata right angle; at the same time seal in theplatinum wire by means of a blowpipe, sothat the tip just projects from the bent end Contact B7eakers. 79 of the tube. This seaHng can be accom-pHshed readily by one unused to workingglass, but almost any…
Induction coils · Radiography · X-rays
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