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[D7719ZDR], Letter from Thomas Alva Edison to Thomas B A David, November 28th, 1877

Title: [D7719ZDR], Letter from Thomas Alva Edison to Thomas B A David, November 28th, 1877
Editor's Notes: Don't understand about one of David's men working carbon telephone -- what he means is solid disk of either plumbago or lampblack or gas retort carbon same as I have always used -- believes he has perfectly satisfactory telephone now
Author: Edison, Thomas Alva
Recipient: David, Thomas B A
Mentioned: Bell, Alexander Graham
Date: 1877-11-28
Type: Letter
Subject: Carbon, coal, glass, ceramics; Telephone
Folder ID: D7719-F
Microfilm ID: 14:1002
Document ID: D7719ZDR
URL: https://edisondigital.rutgers.edu/document/D7719ZDR
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 14
License: CC0 1.0 Universal

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