[NV08352], Technical Note, Thomas Alva Edison, August 18th, 1876

Item

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Abstract

EMG; large number of compounds to ascertain which best substance to make disk for emg; ascertained action entirely due to decomposition of fluid; disk won't be ready till tomorrow; had Wurth alter emg from tripod to disk; found chalk eliminated mechanical vibrations [one of chief obstacles]; repeated at about 11/min; with new emg and chalk pyro works well to Philly 200/min -- see 3786ff for further expts with chalk to determine best proportions

Date

1876-08-18

Decade

1870-1879

Identifier

NV08352

Folder Set

NV08

Title

[NV08352], Technical Note, Thomas Alva Edison, August 18th, 1876

Microfilm ID

3:782

Publisher

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

Timestamp

August 18, 1876