1056 



Voltaic Electricity. Section 11: Telephony and Microphony. 



Xo. 63 380 



63 380. 1 : 6. 



63 381. 1 : 4. 



1 : 4. 



63 383. 1 : 6. 



63,38(1. Loud-speaking Telephone, Figure, consisting of an extra-sensitive Microphone 

 with large induction coil, a Precision Telephone with sound horn, three large Dry Cells 

 and 20 m insulated Twin Flexible ...'... 4. 0. 



The loud effect of the Telephone is excellent; s) -li. son.a'. and whistling are reproduced 



verv loud. 



1. 0. 



2. 8. 



63,381. Micro-telephone Station for short-distance work (in same house, etc.), for battery 



Figure, with granular carbon microphone, stem telephone, bell with steel dome, 

 automatic hook switch, induction coil, key and terminals, in polished walnut case. Each 



For the microphone and call together two cells No. 60,787 per station are necessary. 



63.382. 



- idem, for magneto-call, Figure 



One cell (No. 60,787) per station is necessary for the microphone. 



Kaeli 



Stations NOB. 63,381 and 63,382 are very practical for connecting >eparate r us ( l>iivctor'~ 



room and porter's dwelling). Except for the wire material (No. ti2.:t.~>i. p. mil) and the cells, nothing 

 further is necessary. The erecting can be dune without special preliminary knowledge. 



C'l. 3080, 79 K. 

 80 F, 6011. 



