[D8123S], Letter from Francis Robbins Upton to Thomas Alva Edison, March 7th, 1881

https://edisondigital.rutgers.edu/document/D8123S

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Title

[D8123S], Letter from Francis Robbins Upton to Thomas Alva Edison, March 7th, 1881

Editor's Notes

The expt Nichols tried was to pass current from one machine through armature & magnets of another, to find the pull at starting. Fifteen lbs at 30 in radios. This for Prof Young's info. Trouble in machine was behind his control: a cross. PS Logan says machine crossed in armature & magnet.

Date

1881-03-07

Decade

1880-1889

Type

Subject

Folder/Volume ID

D8123-F

Microfilm ID

57:795

Document ID

D8123S

Publisher

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