[NS7704ZAT], Technical Note, Charles Batchelor, Thomas Alva Edison, May 13th, 1877
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Title
[NS7704ZAT], Technical Note, Charles Batchelor, Thomas Alva Edison, May 13th, 1877
Editor's Notes
sexty, 9pp.: double-point double-relay combo {dpdr} circuit unit "This works the best of all. Reversals and the 100 & 50 [main?] closed dont effect it enough to prevent fast signalling="; relay lever details; transm. connex; fr.578 dpdr "This appears to be the best yet3all 3 going I read Charley 25 words a minute little uneven-"
Date
1877-05-13
Type
Folder/Volume ID
NS7704-F
Microfilm ID
7:570
Document ID
NS7704ZAT
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University