5. Show by means of a diagram how to join up a double-current key for single- current working. 6. Show how it is possible to work a circuit with six stations on the wire A, B, 0, D, E, F, and with only one battery at A. ... Switch for converting aquot; multiplexaquot; working into aquot; simplex, aquot; or rice versO, : a 7. ... In Delaneya#39;s system, if the trailers were running synchronously the correction currents were not received upon theanbsp;...
|Title||:||The Telegraphist. Ed. by W. Lynd|