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Edison Papers at Rutgers University","related":{"@id":"https://edisondigital.rutgers.edu/document/N045104B","format":"text/html"},"seeAlso":{"@id":"https://edisondigital.rutgers.edu/api/items/104684","format":"application/ld+json"},"metadata":[{"label":"Title","value":"[N045104B], Technical Note, Charles Batchelor, September 18th, 1879"},{"label":"Editor's Notes","value":"Edison's Telephone problem of track not being clear for chalk worked on four days; tests of various carbons in inertia telephone, alterations to inertia telephone, tests on old transmitter "one of hte great difficulties withour inertia telephones is that after using some time a number were taken down and tested for resistance with same pressure on each. They varied from 40 ohms to 6 ohms and some were insulators. This variation would kill them entirely.""},{"label":"Author","value":"Batchelor, Charles"},{"label":"Mentioned","value":["Thomson-Houston Electric Co","Cleland, T","Jablochkoff, Paul","Wallace, William"]},{"label":"Date","value":"1879-09-18"},{"label":"Type","value":"Technical Note"},{"label":"Subject","value":"Telephone"},{"label":"Folder/Volume ID","value":"N045-F"},{"label":"Microfilm ID","value":"32:1106"},{"label":"Document ID","value":"N045104B"},{"label":"URL","value":"https://edisondigital.rutgers.edu/document/N045104B"},{"label":"Rights","value":"Thomas Edison National Historical Park"},{"label":"Publisher","value":"Thomas A. 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