[NV14038], Technical Note, Thomas Alva Edison, February 7th, 1878
https://edisondigital.rutgers.edu/document/NV14038
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Title
[NV14038], Technical Note, Thomas Alva Edison, February 7th, 1878
Editor's Notes
Telephones with polarization cell; variable resistance by changing polarization of cell and tries with selenium [TAE invents optical telephone?]
Author
Date
1878-02-07
Type
Subject
Folder/Volume ID
NV14-F
Microfilm ID
4:179
Document ID
NV14038
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University