[N085169], Technical Note, Francis Robbins Upton, October 19th, 1879
https://edisondigital.rutgers.edu/document/N085169
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Title
[N085169], Technical Note, Francis Robbins Upton, October 19th, 1879
Editor's Notes
A stick of carbon brought up in a vacuum to 40 candles (say). Mr. B-- trying to make a spiral of carbon; also date of 10/21 stick of carbon about .020 and 1/2 inch long gave cold 4 ohms incandescent 2.3 ohms very good light Pt. wires melted.
Author
Mentioned
Date
1879-10-19
Type
Folder/Volume ID
N085-F
Microfilm ID
35:867
Document ID
N085169
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University