[MBN012091A], Technical Note, Charles Batchelor, February 1st, 1889
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Title
[MBN012091A], Technical Note, Charles Batchelor, February 1st, 1889
Editor's Notes
Phonograph Battery defects. In the Phonograph battery we use Carbon and Zinc-- Mercury electrodes & a Sulphuric Acid-Chromic Acid solution--7 1/2 cc Chr.Ac. 15 Sul. Ac. Cc 40 cc Water-- Zincs are 10% Mercuary at present. Long before the Zinc has entirely given out & in fact the first exemption of its intention to do so, is a large occurring at XX. X is the line of the fluid Sometimes the liquid boils. We partially obviate this by lessening the Sup. Ac to 10 cc.. [two drawings with this entry]
Author
Date
1889-02-01
Type
Folder/Volume ID
MBN012-F
Microfilm ID
91:552
Document ID
MBN012091A
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University