[LB001319], Letter from Thomas Alva Edison to Sigmund Bergmann, January 11th, 1878
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Title
[LB001319], Letter from Thomas Alva Edison to Sigmund Bergmann, January 11th, 1878
Editor's Notes
Problem in telephones manufactured by Bergmann that permanent magnet too high above rubber; please fix others making and also make bindpost with 10/32 screw as better for rubber and also screw them tighter so they don't come loose; also change in bracket that platina point strikes; also slot cores below center
Author
Recipient
Date
1878-01-11
Type
Folder/Volume ID
LB001-F
Microfilm ID
28:192
Document ID
LB001319
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University