NEW TELEPHONE MARVEL

Taranaki Daily News, Volume LI, Issue 212, 28 August 1908, Page 4

NEW TELEPHONE MARVEL

SIMULTANEOUS SPUAKIXG AND .win/mo. A German inventor, llerr Gustav <irzanna, is exhibiting a novel apparatus for transmission of electrical energy, llerr Grzanna can tranMiiit handwriting, sketches, ute., over an ordinary telephone wire for very considerable distances and within the period of a few seconds, thus making a considerable advance over the old system of electric writing at a distance, lie uses a low tension current, viz., 12 volts, in the transmitting and receiving boxes, and his apparatus can be made an auxiliary of common telephonic communication, aud, therefore, its commercial utilisation is ready to hand. llerr Grzanna's messages are passed, through as fast as they are written, and the transmitter uses the pencil naturally. Other systems require somewhat laborious handling of the transmitting mechanism so that it takes about halt an hour to send, and receive even a short sentence. In fact, the Grzanna instrument is the autographic double of the voice in tdephouie communications. One- can actually speak, and write or draw at the same time through the same wires, the telephone being connected with the apparatus through a condenser of two microfarads.—Daily Mail.