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[N311049], Technical Note, Hugh De Coursey Hamilton, December 14th, 1885

Title: [N311049], Technical Note, Hugh De Coursey Hamilton, December 14th, 1885
Editor's Notes: "Phonoplex Exp Making comparison between receiving instruments by shunting with condenser, Siemens form spool wound 282 ohms iron diaphragm 19/1000 thick, steel pin, receive trhough 140 sheets of condenser"; followed by other sets of spool resistance and sheets of condenser, also Russia Iron diaphragm
Author: Hamilton, Hugh De Coursey
Mentioned: Force, Martin N
Date: 1885-12-14
Type: Technical Note
Subject: Phonoplex and railroad telegraphy
Folder ID: N311-F
Microfilm ID: 42:377
Document ID: N311049
URL: https://edisondigital.rutgers.edu/document/N311049
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 42

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