[D8123ZAH], Letter from Francis Robbins Upton to Thomas Alva Edison, March 17th, 1881

https://edisondigital.rutgers.edu/document/D8123ZAH

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Title

[D8123ZAH], Letter from Francis Robbins Upton to Thomas Alva Edison, March 17th, 1881

Editor's Notes

Shipped ystdy 40 lamps 104, 105, 106 volts; balance go today. This as near as I could come to same volts. Found that changing machines caused halt of 2 days; have reduced this by changes described. Dr. Nichols pointed out how to read webers on B lamps from the resistance box, so don't need one of the dynamometers. If wound for high resistance, you will find it convenenient for your office.

Date

1881-03-17

Decade

1880-1889

Type

Folder/Volume ID

D8123-F

Microfilm ID

57:824

Document ID

D8123ZAH

Publisher

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