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[N320016] Technical Note, April 18th, 1886

Title: [N320016] Technical Note, April 18th, 1886
Editor's Notes: p. 216 blank, actually 217 drawing "ear piece", drawing "Trans mouth piece", drawing "Meter by electric heat expansion"; p. 19 drawing "See if it will conduct in straight line & get Res every 10 feet--" drawing "disc glass coated in vacuum with iron & white wax method & flowed over before vac broken-- see effects magnetic letting light through also put secondary coil around X & see if beam light through alum gives electric wave in mirror gal-- also heat"
Author: Edison, Thomas Alva
Date: 1886-04-18
Type: Technical Note
Subject: Telephone; Sockets, fuses, meters, and other interior elements
Folder ID: N320-F
Microfilm ID: 43:308
Document ID: N320016
URL: https://edisondigital.rutgers.edu/document/N320016
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
License: CC0 1.0 Universal
Has Version: Archive.org Viewer, Microfilm Series Reel 43

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