[D7838R], Letter from Asahel K Eaton to Thomas Alva Edison, February 27th, 1878
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Title
[D7838R], Letter from Asahel K Eaton to Thomas Alva Edison, February 27th, 1878
Editor's Notes
Glass disks TAE wants will have to be made specially -- Prof. Plympton and three or four others want to call on TAE at Menlo TAE marg: I may require a 1000, but want 25 immediately. I use the disks which are 5/8 diameter & 3/1000 thick in my carbon telephone for pressing down the platina disk on carbon button by diaphragm. Ivory wood vulcanite etc swells or warps by heat due to the passage of the current through carbon. How much per 1000 or doz. These must be flat , will name day when to bring your men over=
Author
Recipient
Date
1878-02-27
Type
Folder/Volume ID
D7838-F
Microfilm ID
19:635
Document ID
D7838R
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University