[D8123ZCC], Letter from Francis Robbins Upton to Thomas Alva Edison, May 28th, 1881

https://edisondigital.rutgers.edu/document/D8123ZCC

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Title

[D8123ZCC], Letter from Francis Robbins Upton to Thomas Alva Edison, May 28th, 1881

Editor's Notes

16-candle lamps have passed 480 hours; two failures. Let two in the engine gang go b/c sat around too much. "The lamps with carbons which were high resistance due to the final heat are all right. They are making a fine curve and their resistance is low."

Mentioned

Date

1881-05-28

Decade

1880-1889

Type

Folder/Volume ID

D8123-F

Microfilm ID

57:895

Document ID

D8123ZCC

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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