No. 63330. 



Wireless Telegraphy. 



1051 



Spark 0>p 



--0 O 



Hammer 

 Interrupter n I 



* 



J 



Tuning Coil 

 Short Circuited Spark Gap 



Avnai 



Diagram of Connections of the Transmitting Station 

 of the Slaby-Arco system. 



63 326 C. 



63 327 C. 1:20. 



Tapper 



BO, 



Switch I 



I ells ; , 



I i -(k-"4 



Diagram of Connections of the Receiving Station of the 

 Slaby-Arco system. 



63 326 D. 



63 327 A. 1:5. 



63 327 B. 1:5. 



63 328. 1 : 5. 



63.328. Branly Tube, Figure, filled with small iron screws, for demonstration .... 



63.329. Automatic Needle Coherer after Bleckrode 



63.330. Coherer after Pantenius (Kolbe, Elek.-Lehre, 2 nd Edn., Vol. 2, 1905, Fig. 80A) . . 



Cl. 6598, 65M9, 

 8583, 

 3584. 



3585, 3870. 



s. d. 

 0. 16. 



0. 6.0 



1. 4.0 



