[D8123ZCJ], Letter from Francis Robbins Upton to Thomas Alva Edison, June 9th, 1881

https://edisondigital.rutgers.edu/document/D8123ZCJ

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Title

[D8123ZCJ], Letter from Francis Robbins Upton to Thomas Alva Edison, June 9th, 1881

Editor's Notes

Adams and Haydens visited regarding the wire for Johnson. Also, Nichols has been searching for reason for drop in voltage and candlepower of 16 candle lamps. Line resistance accounts for drop of 1/4 to 1/3 volt which accounts for drop of 1/8 candle.

Date

1881-06-09

Type

Folder/Volume ID

D8123-F

Microfilm ID

57:908

Document ID

D8123ZCJ

Publisher

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