[MBN002041], Technical Note, Charles Batchelor, July 31st, 1877
https://edisondigital.rutgers.edu/document/MBN002041
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Title
[MBN002041], Technical Note, Charles Batchelor, July 31st, 1877
Editor's Notes
Apparatus for getting Sh Th and S not perfect and alter device and begin new experiments with diaphragms of different materials and different spring designs -- instead of solid plumbago make it into a cake and talking is perfect -- plumbago likely to shake and deteriorate and perhaps can make band of it and continously expose a new place
Author
Date
1877-07-31
Type
Folder/Volume ID
MBN002-F
Microfilm ID
90:677
Document ID
MBN002041
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University