[N238055], Technical Note, John F Ott, June 27th, 1882

https://edisondigital.rutgers.edu/document/N238055

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Title

[N238055], Technical Note, John F Ott, June 27th, 1882

Editor's Notes

"Continuation of Experiment June 19. 1882 with Brass brushes Resistance of leading wires Temp" Dwg shows Wheatstone Bridge with 1/10 ratio on two of the legs. Tests of brushes made from various metals/alloys: tin and copper, yellow brass, zinc, babbit metal, lead, phosphor bronze, steel, copper, tin, cast iron, german silver. All tests use the same Wheatstone bridge configuration with 1/10 ratio in one leg, and unknown quantity "x" in another leg. Also notes: "verry unsteady" or "extremely steady"

Author

Date

1882-06-27

Folder/Volume ID

N238-F

Microfilm ID

41:602

Document ID

N238055

Publisher

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