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[N317109] Technical Note, April 13th, 1886

Title: [N317109] Technical Note, April 13th, 1886
Editor's Notes: p. 110 "On phonoplex try 2 7 ohm coils in series with 8 cells instead of 4 so same amperes passes through both as one-- see if this don’t do better if not make one sounder with 4 points so they will leave & close exactly & use separate battery & separate condensers around the sparking points. Perhaps the 2 coils in series requiring 8 cells causes such high EMF at points that to get rid of spark too much condnesermusst be used & this takes it from the line but withone sounder & separate points ok; p. 111-13 drawing "Multiple phonolex";
Author: Edison, Thomas Alva
Date: 1886-04-13
Type: Technical Note
Subject: Phonoplex and railroad telegraphy
Folder ID: N317-F
Microfilm ID: 43:57
Document ID: N317109
URL: https://edisondigital.rutgers.edu/document/N317109
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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