[N203217], Technical Note, Thomas Alva Edison, October 13th, 1884
https://edisondigital.rutgers.edu/document/N203217
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Title
[N203217], Technical Note, Thomas Alva Edison, October 13th, 1884
Editor's Notes
"Square plate telephone"; Image 99 is loose item found in book; instructions to Martin [Force?] to try expt, probably related to direct conversion---make carbon rod a little red a short distance from surface of the liquid. Try with sounder first, then galvanometer.
Author
Mentioned
Date
1884-10-13
Type
Subject
Folder/Volume ID
N203-F
Microfilm ID
40:568
Document ID
N203217
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University