[N326009], Technical Note, Ezra Torrance Gilliland, August 28th, 1886
https://edisondigital.rutgers.edu/document/N326009
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Title
[N326009], Technical Note, Ezra Torrance Gilliland, August 28th, 1886
Editor's Notes
[drawing labeled "Double Diaphragm") "Works good but no better than standard [drawing with label "upper diaphragm connected with upper electrode] Works very well but not better than standard [drawing] Corrugated Electrode the object being to prevent the granulated material from coming away from the center of the diaphragm-- This worked splendidly and is very decidely an improvement upon the regular standard form-- further experiments will be made and a long test will be made to determine its staying qualities-- its talking qualities are superior as far as our tests have gone-- Tried powedered Feldspar coated with plumbago no results-- Tried [sage?] covered with plumbago talks about same as a hand telephone--
Author
Mentioned
Date
1886-08-28
Type
Subject
Folder/Volume ID
N326-F
Microfilm ID
43:818
Document ID
N326009
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University