[LB001319], Letter from Thomas Alva Edison to Sigmund Bergmann, January 11th, 1878

Item

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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

Recipient

Date

1878-01-11

Decade

1870-1879

Type

Identifier

LB001319

Folder Set

LB001-F

Microfilm ID

28:192

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University