1038 



Voltaic Electricity. Section 10: Electrical Oscillations. 



No. 63 257 





63 267 A. 



63 262. 1 : 8. 



53 508. 1 : 6. 



63 267 B. 



63 267 C. 



63.257. Extra Resonance Coil on base, with Geissler Tube, for showing the tuning of a 

 receiving station for wireless telegraphy 



63.258. Extra Resonance Coil on base, for showing the screening effect 



For this experiment Coil No. 63,257 must be available in addition to the above. 



63.259. 2 Leyden Jars with metal fittings, 26 cm high, medium capacity, cf. Fig. 63,207 . 



63.260. 2 Extra Jars of higher capacity Each 0. 6. 



63.261. 2 Extra Jars of lower capacity Each 0. 6. 



63.262. Oil Condenser with variable capacity, Figure, for use instead of the Leyden 

 Jars 



63,210. High Tension Transformer after Elster & Geitel, with two secondary coils of different 

 winding, Fig. 63,210, p. 1031 



or : 



63,211. -- idem, larger. Fig. 63,211, p. 1031 



63.208. Spark Micrometer with flat thread, high pitch regulating screw on long ebonite 

 handle, in glass box, on serpentine si one base. Fig. H3,208, p. 1031 



63.209. idem, with protecting silencer box 



A complete special list, with description, of 

 Seibt's Apparatus, forwarded on application. 



4973, 1105, 

 5765. 



s. d. 

 1. 4.0 



1. 2.0 



2. 4.0 



0. l-'.O 



0.12.0 

 5. 0.0 

 3.10.0 



5. 0.0 



1. 6.0 



!. Hi. <> 



5759, 

 5763, 



