[N150043B], Technical Note, John F Ott, March 6th, 1883
https://edisondigital.rutgers.edu/document/N150043B
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Title
[N150043B], Technical Note, John F Ott, March 6th, 1883
Editor's Notes
made carbon clamp by winding wire on a flat mandrill then placing a flat wedge alongside the carbon. P. 43 "Made meter after the following principle:" looks like mercury diffused through "porous substance." Made safety plugs as follows. P. 49 made lamp with two spirals and one carbon [sketch]
Author
Mentioned
Date
1883-03-06
Type
Folder/Volume ID
N150-F
Microfilm ID
39:101
Document ID
N150043B
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University