[N045104B], Technical Note, Charles Batchelor, September 18th, 1879

Item

Abstract

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."

Date

1879-09-18

Decade

1870-1879

Subject

Identifier

N045104B

Folder Set

N045

Title

[N045104B], Technical Note, Charles Batchelor, September 18th, 1879

Microfilm ID

32:1106

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University