[LB001296], Letter from Thomas Alva Edison to Franklin Hodgkins Badger, October 2nd, 1877
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Title
[LB001296], Letter from Thomas Alva Edison to Franklin Hodgkins Badger, October 2nd, 1877
Editor's Notes
Thanks Badger for "mica paint" -- used for diaphrgms; least affected by heat and no harmonics; metals "frightfully variable by heat" expansion and contraction so bad in them that "we have entirely altered our way of holding the silk fluff" next phones being made by Murray will be of the new plan
Author
Recipient
Mentioned
Date
1877-10-02
Type
Subject
Folder/Volume ID
LB001-F
Microfilm ID
28:170
Document ID
LB001296
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University