[LB001296], Letter from Thomas Alva Edison to Franklin Hodgkins Badger, October 2nd, 1877

Item

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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

Date

1877-10-02

Decade

1870-1879

Type

Identifier

LB001296

Folder Set

LB001-F

Microfilm ID

28:170

Publisher

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