[D7941ZKN], Letter from Edward Hibberd Johnson to Thomas Alva Edison, December 29th, 1879
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Title
[D7941ZKN], Letter from Edward Hibberd Johnson to Thomas Alva Edison, December 29th, 1879
Editor's Notes
Waterhouse wants dates of TAE's steps inventing carbon trans & other dates re microphones. Also needs transmitter made in accordance with 1877 pat. What does "pressure" mean in spec? Barton thinks TAE's use of "pressure" dissimilar from Hughes' "contact." Needs to demonstrate how trans actually works, not just theory. How about getting original insts which Adams gave to Preece?
Author
Recipient
Mentioned
Date
1879-12-29
Type
Folder/Volume ID
D7941-F
Microfilm ID
52:1031
Document ID
D7941ZKN
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University