[N119041], Technical Note, Francis Jehl, Francis Robbins Upton, September 30th, 1880
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Title
[N119041], Technical Note, Francis Jehl, Francis Robbins Upton, September 30th, 1880
Editor's Notes
Conitinuing factory lamp tests. Lamps tested twice, with different EMF & resis (probably before and after full evacuation?). More of same, with occasional notes about blue light, bad spots, etc.
Mentioned
Date
1880-09-30
Type
Subject
Folder/Volume ID
N119-F
Microfilm ID
37:466
Document ID
N119041
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University