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[NS7704ZAT], Technical Note, Charles Batchelor, Thomas Alva Edison, May 13th, 1877

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-"
Author: Batchelor, Charles; Edison, Thomas Alva
Date: 1877-05-13
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: NS7704-F
Microfilm ID: 7:570
Document ID: NS7704ZAT
URL: https://edisondigital.rutgers.edu/document/NS7704ZAT
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 7
License: CC0 1.0 Universal

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