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[NS7704Y], Technical Note, Charles Batchelor, James Adams, Thomas Alva Edison, April 10th, 1877

Title: [NS7704Y], Technical Note, Charles Batchelor, James Adams, Thomas Alva Edison, April 10th, 1877
Editor's Notes: Sexty circuits, devices 9 pp; discharge line by tuning forks (NY, albany, roch, buff, toledo, s bend, chi); pol rel w/horseshoe mag "this makes it less sensitive to weak currents"; fr 472 also has 11 Apr sketch
Author: Batchelor, Charles; Adams, James; Edison, Thomas Alva
Date: 1877-04-10
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: NS7704-F
Microfilm ID: 7:467
Document ID: NS7704Y
URL: https://edisondigital.rutgers.edu/document/NS7704Y
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

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