[N325AAF], Technical Note, Thomas Alva Edison, John F Ott, September 14th, 1886
https://edisondigital.rutgers.edu/document/N325AAF
→ View document with UniversalViewer
→ View document on Archive.org
→ Re-use this digital object via a IIIF manifest
Title
[N325AAF], Technical Note, Thomas Alva Edison, John F Ott, September 14th, 1886
Editor's Notes
"Tested different substance for conductivity, to be used in Minussipal [Municipal] Lamp, Carbonbized Charchol treated with hydrocarbon deposit Piece 1/8 thick 1/4 square Ohms 1 1/4 Carbonized two moulds Anthrecite coal. Heated one moult to red heat then taken it out, this cool measured 21,000 ohms The other the same heat and lfet in Twenty minutes then taken out This measured 500 Ohms
Author
Date
1886-09-14
Type
Subject
Folder/Volume ID
N325-F
Microfilm ID
43:776
Document ID
N325AAF
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University