[LM102082], Letter from John Trumbull Marshall to Edison Lamp Co, Francis Robbins Upton, May 2nd, 1888
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Title
[LM102082], Letter from John Trumbull Marshall to Edison Lamp Co, Francis Robbins Upton, May 2nd, 1888
Editor's Notes
[sends tables of Lalande battery cells required for different CP battery lamps; also includes note for Kennelly (this should probably be indexed as Marshall to Kennelly) The drop in candle-power, given is that due to the drop in the cells and no allowance is made for the drop due to burning.####The calculations are made from the average --lls and amperes of the lamps that were sent us l####P.S.--Perhaps 9 cells would be better to use for the 3 c.p lamps but they will not give quite 3 C.P.
Author
Recipient
Mentioned
Date
1888-05-02
Type
Folder/Volume ID
LM102-F
Microfilm ID
109:20
Document ID
LM102082
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University