The B & O Telegraph company tried out the new Hopkins Transmitter

[Newspaper]

Publication: The Daily Commonwealth

Covington, KY, United States
vol. 6, no. 244, p. 2, col. 3


CINCINNATI.


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A party of gentlemen in the Baltimore and Ohio Telegraph Company's office, yesterday afternoon, talked over twelve hundred miles of wire. This was accomplished with the aid of the new Hopkins transmitter. L. D. Stanley, electrician, exhibited the instrument. One telephone was put up the cellar of the B. & O. office, and the other in the operating room. First, a circuit of about six hundred miles was made by way of Grafton, Va., the telephone wires being attached to the telegraph wires; and conversation was carried on between the two telephones in an ordinary tone. Then the circuit was enlarged, taking in Baltimore, and there was very little if any dimunition in the sound that travelled over the long distance. The difference between the Hopkins and the Bell instrument is in the transmitter. Mr. Stanley claims for the former that it almost entirely prevents induction. Gen. Durbin Ward, George Duckworth and others propose to organize a company to take the right for this section.

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Keywords:Baltimore and Ohio Telegraph Company
Researcher notes: 
Supplemental information: 
Researcher:Bob Stahr
Date completed:March 14, 2008 by: Bob Stahr;