. Radiography and the 'X' rays in practice and theory : with constructional manipulatory details . Fig. 10.—Completed Condensek. Fig. 11.—Contact-Breakek. § 24. The contact breaker next claims attention. Thegreat point to be aimed at, in order to produce a goodlong spark, is certainly a sufficiently long contact toenable the iron core to be magnetised to the full. Forsmall coils, the ordinary hammer ^Yith spring andadjusting back nut as shown at fig. 11, in conjunctionwith a platinum-tipped screw on pillar, will be found 46 RADIOOPAPIIY to give satisfaction ; but with larger coils, either theA
. Radiography and the 'X' rays in practice and theory : with constructional manipulatory details . Fig. 10.—Completed Condensek. Fig. 11.—Contact-Breakek. § 24. The contact breaker next claims attention. Thegreat point to be aimed at, in order to produce a goodlong spark, is certainly a sufficiently long contact toenable the iron core to be magnetised to the full. Forsmall coils, the ordinary hammer ^Yith spring andadjusting back nut as shown at fig. 11, in conjunctionwith a platinum-tipped screw on pillar, will be found 46 RADIOOPAPIIY to give satisfaction ; but with larger coils, either theAppB form, of wliich a ^ood ilhiHtration is given atfig. V2, or the \ril * will l)o found more Batisfactory. n r n -r^4 s- ^ mp> m^^^^ /\A rr % ^ r
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Keywords: ., bookcentury1800, bookdecade1890, bookidradio, bookpublisherlondon
