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[LM111131], Letter from Arthur Edwin Kennelly to Charles Batchelor, September 19th, 1888

Title: [LM111131], Letter from Arthur Edwin Kennelly to Charles Batchelor, September 19th, 1888
Editor's Notes: [image 66]"The present coil of wire on ---- section of the phonograph under is 40 turns of 0.025 [degree symbol] --- - 23 wire covered with [silt?] to 0.031 [degree symbol] having 11 feet in length and offering 0.19 " resistance####The wire required to make 5 layers of 9 turns each or 27 in all is 0.030 [degree symbol] between Nos 51 122 [BWG?] --- will be 71.6 " long and will offer 0.086 -####I ------ the present ---- of the armature is 0.4750 in which case it will have 0.215 - with the ---- wire"
Author: Kennelly, Arthur Edwin
Recipient: Batchelor, Charles
Date: 1888-09-19
Type: Letter
Subject: Motors; Cylinder phonograph
Folder ID: LM111-F
Microfilm ID: 109:172
Document ID: LM111131
URL: https://edisondigital.rutgers.edu/document/LM111131
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 109

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