[N106115], Technical Note, Charles Batchelor, Alexander Welsh, December 1st, 1880
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Title
[N106115], Technical Note, Charles Batchelor, Alexander Welsh, December 1st, 1880
Editor's Notes
"The lamps made for laboratory from this date will be bamboo 8X17 thousandths--5 hours carbonization--and will be numbered consecutively commencing at 1. All will be under 400 ohms resistance when cold. Platinum clamps." Followed by more Alex Welsh carbon resistance records.
Date
1880-12-01
Type
Folder/Volume ID
N106-F
Microfilm ID
36:515
Document ID
N106115
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University